Concave and Convex Mirrors

[@ManochaAcademy]

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[@VaralakshmiVara-xr8hf]

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[@indranibalasubramani9392]

Q.1 a)convex mirror b)plane mirror c)concave mirror Q.2 Given: f-10cm f=R/2 10=R/2 10×2=R R=20cm Q.3 plane mirror: plane mirror has a flat surface and parallel beam of light will reflect in parallel. Concave mirror: Concave mirror is a spherical surface and reflection will be converge. Convex mirror: Convex mirror is also a spherical surface the reflection will be diverge.

[@vgtech692]

But the answer b is concave because it is diverging ray ex of put a paper and parallely distance tilted downward when the sun rays meet the magnifying glass the rays meet at one point so the paper burns

[@manishagiree]

Q1 a) Convex mirror b) Convave mirror c) Concave mirror (?) Q2 ) f = r/2 therefore r = f×2 and the r= 10× 2 = 20 cm. Q3) A plane mirror is a flat surface which reflects the image clearly. A Concave mirror is an inverted image of original object and also it is a magnified image. A Convex mirror is a mirror in which basically we can se many things fitted in the image obtained or objects get divereged into the mirror.. thanks alott for such a good explaination it made the chapter so easy to understand...👍👍

[@aradhya5624]

Q1 (A) convex mirror (B) concave (C) concave Q2)Focal lengths is 10 cm then f=r/2 r=f*2 => r=10*2 => r=20cm Q3) by seeing the image formed in the different mirrors can distinguish the types of mirror without touching the surface of the mirrors Thank you 😌

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[@Fitandhittuber]

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[@MohdRehan-wo7ch]

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[@bhumikochar5358]

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[@subikshaabm]

Q1 (a) convex (b) concave (c) concave Q2 given, f=10cm R = 2f = 2 x 10 = 20cm Radius R = 20 cm. Q3 Without touching the mirror, we still can identify the type of that mirror. We can identify them just by merely standing in front of it. If the image is of same height and upright it might be a plane mirror. If the image is inverted and when moved closer the image is highly magnified, it is a concave mirror. If the image formed is diminished, it is a convex mirror. We can also identify them by looking at the mirror whether it is flat, bulged or curved inwards. I thank Manocha academy to teach topics in the simplest way and making study more fun to learn ! I thank you so much ..

[@dharmathilakawalakuluarach2136]

1 ) a ) Convex mirrors are used in shop security mirrors. b) Concave mirrors are used in solar furnace c) A concave mirror is used by dentists to examine teeth. 2) The radius of curvature is exactly twice the focal length so the answer is 20cm . 3) If you look into a plane mirror, you can find that the size of the image is same as that of the object. If you look into a concave mirror, you can see an enlarged image when placed close and can see an inverted image when kept away. A convex mirror always forms a small and erect image.

[@dharmathilakawalakuluarach2136]

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[@AmanKhan-kg5iq]

Q1 A. Convex B. Concave C. Convex Q2 Radius of curvature is 20cm because the focal length is equal to half of the radius of curvature Q3 In the plane mirror the size of the image on mirror is equal to size of the object In the concave mirror the size of the image is greater than size of the image In the convex mirror the the size of the image is smaller than the size of the object So we find the type of mirror without touching him

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[@ManochaAcademy]

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[@DineshParmar-nf5ey]

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[@RecipeRevolution88]

Sir Q1. a) convex mirror b) concave mirror c) concave mirror Q2)20cm Q3)Plane mirror will give image of same shape and height. Convex mirror will give diminished and upright image. Concave mirror will give inverted and magnified image.

[@ManochaAcademy]

Super! All your answers are correct :) Also try the Quiz for this video on my Website. Quiz button is below the video: www.manochaacademy.com/physics/light/l/concave-and-convex-mirrors

[@anvidplayzz]

QUESTIONS ANSWERS (12:51) 1.a) Concave b) Convex c) Concave 2. Focal length = r/2 R = focal length × 2 Focal length = 10cm R = 10 × 2 = 20cm 3. By putting a torch a bit far away from the mirror. If the mirror is flat and the torch is seen on the other side of the mirror, then it is a plane mirror. If a curved mirror projects an upside image of the torch, then it is a concave mirror. If the curved mirror projects an erect image of the torch, then it is a conver mirror.

[@Etsuuuko]

bro this is so wrong

[@Etsuuuko]

except the question 2

[@rachnagarred]

3.By Determining the Focus of the mirror. If the focus is behind the mirror, the mirror is a convex mirror. If the focus is in front the mirror, the mirror is a concave mirror.

[@anvidplayzz]

@@Etsuuuko how?

[@shyamaprem8558]

Anvidplayzz you are completly wrong for the first question except sub division c) The mirrors used for solar furnaces are concave and for shopkeeping mirrors it is convex(as you need a greater view)

[@sombiryadav3448]

1 a) convex mirror b) concave mirror c) concave mirror 2 20 cm 3 plane mirror will show same height image. concave mirror will show inverted Image and when brought closer will be magnified. convex mirror will show the objects small.

[@pamidiram2437]

a) convex: as it cover large area b)concave:rays are converged to focal point C)concave : to focus on exact area 2: F=R/2 10=R/2 R=20 3: Plane mirror:forms actual image Concave: image is inverse and magnified Convex: image is diminished and smaller size Thank u sir.....👏

[@karthikvijayakumaar.k6981]

2: R=20

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[@jamielim3889]

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[@manvendrasinghchauhan17]

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[@anumagupta449]

Agree

[@arkapravapal3619]

1)(a) convex mirror (b) plane mirror (c) concave mirror 2)Focal length=r/2 10=r/2 10×2=r r=20 3)Plane mirror: The surface is flat, the beam of light is parallel and forms upright image of same size Concave mirror: The surface is curved inwards, the beams of light converge at a point and forms inverted image or magnified and upright image Convex mirror: The surface is curved outwards, the beams of light divergence from a point and forms upright and diminished image

[@nadiajamshad1100]

Answers: (Qs 1) (a) convex (b) concave (c) concave (Qs 2) f = R/2 f × 2 =R R= 10 × 2 R= 20 cm (Qs 3) We can distinguish b/w them by standing in front of the mirrors or placing an object in front of then so that we distinguish b/w them by the images formed on the mirrors. Btw the lesson was really good it helped a lot .. Thankyou sir💜👍🏻💯

[@shreyanshdutta2936]

The Top Three Questions: 1.a) Convex Mirror 1.b) 1.c) Concave Mirror 2) The radius of curvature will be the double of the focal length i.e. 10x2 cm = 20 cm. 3) We can distinguish between a plane mirror, concave mirror and convex mirror by looking into each of them. The plane mirror will give us an image of the same height, while the concave mirror will give an inverted image and when looked closer, it will become straight and magnified. In the convex mirror, the image will be shorter and diminished, no matter the distance between the object and the mirror. (Sir, I have a doubt in the 1st question, number 'b' as I don't know the type of mirror used in a solar furnace and its purpose. This is my one and only doubt. Other than this, I have no doubt or problems and my concept is clear.) Thanks, Shreyansh Dutta.

[@moinuonline]

1 b) concave mirror (കോൺ കേവ് )

[@shreyanshdutta2936]

@@moinuonline can you feel me why a concave mirror is used in a solar

[@sfurtisinha4762]

Top 3 questions : 1 - A) Convex Mirror B) Concave Mirror C) Concave Mirror 2 - Since F = R/2, R = F x 2 = 10 x 2 = 20 3 - A plain mirror will show a upright and normal image, a concave mirror will show an inverted or if you go close a magnified image, a convex mirror will show a small but upright image.

[@anushkabartwal9462]

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[@Temko_01]

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[@OlanrewajuAbduljeleel-ej7yu]

Q1 a. Convex mirror is used in shop security mirror so as to give a wide view b. Plane mirror is used in solar furnace c. Concave mirror is used be dentist to examine teeth because of its magnification Q2 If f = 10cm, R = f×2 = 10 × 2 = 20cm Q3. Plane mirror - The image will be the same as the object - the image will be at the same distance as the object - the image will be erect and virtual Concave mirror - The image will be inverted at first but when move closer, it will be magnified Convex mirror - The image will be smaller than the object - it gives a wide view of image

[@sajidashameer144]

1(a) convex mirror (b) concave mirror (c) concave mirrir 2 ) 20cm 3 ) plane mirror : has a flat surface and same hight concave mirror : it is the only mirror wich are inverted or magnified convex mirror : smaller and always upright and diminished sir please tell me if this is correct or wrong

[@beinggood7384]

All correct 💯💯💯

[@parikshitrocks440]

op bolte

[@vijayakumars5727]

1.concave mirror 2.20cm 3.flat mirror gives same height, Concave mirror gives magnified image when very closely and inverted image from distance, Convex mirror gives diminished image

[@mahamayibhat9087]

1 a. Convex mirror b. Concave mirror c. Concave mirror 2. f=r/2 10=r/2 10×2=r r=20 3. There are two ways you can distinguish between plane, Concave and convex mirrors- •plane mirror - the reflective surface is flat concave mirror - the reflective surface is curved inwards convex mirror- the reflective surface is curved outwards OR •plane mirror- when an object is held in front of it, the image appears to be the same size concave mirror- when an object is held in front of it, the image appears to be inverted. If the object is held very close to the surface of the mirror, the image appears to be magnified. convex mirror - if an object is held in front of it, the image appears to be diminished.

[@RajeshKumar-xo8qj]

1. A. Convex B. Concave C. Concave 2. R=2f So, R = 2*10=20cm 3. Plane: if the image formed is of the same size of the object. Concave : if the image formed is magnified or image of the object is enlarged. Convex : if the size of the image is less than the object.

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[@aniruddhadutta4636]

He explains better than school teachers and has thought of student struggles so he talks as if he is our friend and explains so good. Thanks sir.

[@Angel-w7y7b]

1a)convex b)plane c)concave 2 20cm 3 plane mirrors form an upright image of same size convex mirrors form an upright yet diminished image concave mirrors form an inverted image from afar and a magnified and upright image from nearby

[@Allnne-jf3vw]

Q1-a)convex b)concave c)concave Q2- 20cm Q3-By observing the reflection of each mirror Great lesson I enjoyed while also learning

[@cantbreatheproperly]

Q1. (a) convex mirror (b) concave mirror (c) concave mirror Q2. If focal length is 10 cm. f=R/2, then R=f×2 R=10×2 R=20cm Q3. A plane mirror reflects the same height, image. A concave mirror reflections converge forming an inverted image when the object is afar and enlarged, upright if object is near. A convex mirror reflections diverge forming a diminished or reduced image of the object.

[@Rayleigh593]

Solar furnanc isn't plane mirror

[@Rayleigh593]

It's gonna be concave as it converge all the light rays to specific point called the focus which can later be converted into solar energy

[@cantbreatheproperly]

ok, tnx for informing me

[@EducationPlusVishal]

Q1- (a). Convex mirror (b). Concave mirror (c). Concave mirrors Q2- Focal length= half radius of curvature of mirror. So, radius of curvature is 20cm. Q3- Plane- Same size as in real world Concave- magnified close Convex- Covers large area, wide image

[@anur07]

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[@InfiniteTech2017]

1. 1). CONVEX 2). CONCAVE 3). CONCAVE 2. ) focal length = radius/2 10 = r/2 r = 2×10 r = 20 Therefore The Radius is 20 3. ) We can distinguish them by the way they look or the way they give out the image

[@priyansisamarage9714]

A.convex B..concave C.concave 2.20cm 3.by looking at shape

[@abhilashachauhan5541]

1-a convex. b concave. c concave. 2- Focal length - Radius/2 So, Radius - focal length .2 10 multiply by 2 So 20 cm. 3- plane mirror is flat. Concave mirror is curved inwards and has shiny surface. Convex mirror is curved outwards.

[@nilushaperera6866]

Q1. a. convex mirror b. concave mirror c. concave mirror Q2. 20cm Q3. Plane mirror - Flat surface concave mirror - curved inwards convex mirror - curved outwards

[@thittaeditors2501]

Shop security mirror is convex. Dentists use concave mirror by bringing it near our teeth for magnification. We distinguish a plane mirror by noticing that no changes occurs and we can distinguish a concave mirror by inverted image (far) and magnified (near) and we can distinguish a convex mirror by an short image. I hope that the answers will be correct😏

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[@ManochaAcademy]

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He

[@shrithirevanna4759]

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[@anishp1387]

Answers below- 1) a)Convex(because the image formed in the shop security mirror is diminished) b)Concave (because the image formed in the solar furnace is magnified) c) Concave (because the image formed in the mirror by dentists is magnified) 2)We know that focul=radius/2. So if focal length is 10 cm the radius of curvature will be focal x 2. So 10 x2 will be 20 cm.And that’s the answer. 3)Plane mirror is a flat surface which reflects light .Also the body will be of the same height and erect. Concave mirror is curved surface which reflects light.The image will be magnified and inverted. Convex mirror is a surface which reflects light and is curved outwards.The image is diminished. Hope this helps. P.S- Would love to have a like

[@Bts_armygirl_khushi]

Excellent thaku I was serching for answers

[@jasmindersingh0]

Q1. (a) convex mirror (b) concave mirror (c) concave mirror Q2. f=10 f=R/2 then R=2(f) R=20 Q3. by just looking at the mirror for example: plane mirror have plane surface , concave mirror have curved inner surface and convex mirror have curved outer surface.

[@MahveenAatif]

a ) shop security mirror is a convex mirror as it provide greater view of the surroundings. b) for a solar furnace a concave mirror is used as it is a converging lens and converges the sun's rays to a particular point. A lot of heat is provided to that particular point where the food is cooked. c) dentists use a concave mirror as it is a converging mirror and creates a magnified image thus helping the dentist to properly see the teeth.

[@gamingwithjrrohith7949]

3 ans If you look into a plane mirror, you can find that the size of the image is same as that of the object. If you look into a concave mirror, you can see an enlarged image when placed close and can see an inverted image when kept away. A convex mirror always forms a small and erect image.

[@sahanasahana1196]

Sir my answers are 1) a) convex mirror b) concave mirror c) concave mirror 2) If f= R/2 then R = f×2 = 10× 2 = 20 cm 3) Plane mirror = parallel rays remain parallel Convex = diverging mirror Concave = converging mirror

[@AnoopKumar-yn4bb]

Yes sahana you are right 👍💯

[@AbulAytam]

1.Convex.2,plane.3.concave 2.if FP(f)=10 cm FP(r)×2=20cm 3.Plane mirror has a flat surface.Concave mirror has an inner curved surface and convex has an outer curved surface. Thank you very much for letting me know this topic

[@aarthivanimisetty5441]

ur 1st main 2nd is is wrong solar furnace is concave but still kudos for gving it a shot 👏👏

[@dhanalakshmipj2097]

Lol you have helped me a lot a day before exam memorising the concept....Thank you sir!!!

[@ManochaAcademy]

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[@blapixel274]

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[@Allinone-si3tf]

*Note* : *👉In Concave mirror image is inverted, diminished in two cases only* 1. *Object at infinity distance* 2. *object at beyond center of curvature* 👉 *If object is placed at center of curvature then image is inverted and "Same size as the object size"* *👉If object is placed between C & F and Object is at F then the image is inverted, enlarged or magnified*

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[@ManochaAcademy]

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[@chandrakantthube9882]

All concept cleared....every school want a teacher like u....

[@kusumyadav3425]

1- a) Convex mirror b) Concave mirror c) Concave mirror 2- 20 cm 3- By examining the size of the object when placed in front of the mirror's.

[@garvarora9191]

Galat

[@Hopepriyanka]

1 question 1. Convex mirror 2. Concave mirror 3. Concave mirror 2 question 1.20 3 question 1. Plane mirror has flat image 2. concave mirror seemed like a cave and inverted image 3. convex mirror gives short image Thankyou for your great explanation

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[@ZorikaSakamishi]

First question = a.) Convex mirror b.)i am not sure but concave mirror c.) Convex mirror Second question = given focal length = 10cm so since radius =f/2 to gind f use f=radius×2. f=10cm×2=20cm Third question= plane mirrors show us the same hight like the real object and the image is upright Concave mirrors they can show as inverted and magnified images when we get close it gets magnified and when we get far from it it gets inverted Convet mirrors they cover larger area for as to see and the rays are demnished Thanks sir now i have an improved understanding about mirrors correct me if i am mistaken in my answers 🖒 Thanks

[@akshatsingh8910]

c shall be concave as dentist has to see the teeth closely so he can take precis operation btw im in 7th class

[@anumehatyagi3085]

1.A) Convex mirror B)Concave mirror C)Concave mirror 2. Radius of curvature = f x 2 10 x 2 = 20 3. Plane mirrors show the exact reflection back to you. Concave mirrors show a magnified and inverted image . Convex mirror form upright and diminished image.

[@debolinamandaldavmtps1753]

1.a) Convex Mirror b) Concave Mirror c) Concave Mirror 2. We F=r/2 Therefore, 10cm=r/2 r=10cm*2 =20cm 3.→Plane Mirrors have Flat Surface. →Concave Mirrors are curved Inwards. →Convex Mirrors are curved Outwards.

[@harshith9943]

😒😒

[@ranarajputana8021]

hello debo can you clear my dought my question is convex mirror main focus toh hota he nahi aur uss focus ko ham bana the ha mirror ke andar aur centre of curvature kasa andar ho sakta ha convex mirror ke?? pls tell

[@RaviNayak_]

@@ranarajputana8021 Since Convex mirror is a diverging mirror, it is not possible for all incidence rays to form a Focus Point. so, we do assume the focus on the back of the mirror. That's why we call it virtual focus. Hope it helps.

[@ranarajputana8021]

@@RaviNayak_ thnx bro🤗💯

[@jessicathakur8129]

1. a) convex b) concave c)concave 2. 20 cm 3. plane mirror : if we place an object in front of it, it will be of the same height and size concave mirror: the object if placed in front of it, the image thus formed will be inverted and when the object gets closer to the mirror, the image will be magnified convex mirror: this mirror gives us a wider view of objects

[@ManochaAcademy]

Super!! All answers are correct :) Also try the Quiz on my website: www.manochaacademy.com/physics/light/l/concave-and-convex-mirrors

[@pinkinaik6368]

1)a convex b concave c concave 2) 20 3)plane mirror -erect image - same size as object Concave - inverted - magnified Convex - smaller - upright

[@zahirzahir9414]

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[@ManochaAcademy]

Wow Thanks

[@OjasBhayal]

Q 1. a) Convex Mirror . b) Concave Mirror . c) Concave Mirror . Q 2. Radius of curvature is 20 cm as :- f = R/2 2f = R 2*10 = R 20 = R Q 3. We can distinguish the mirrors by their reflection or by their shape . Thank you 🙏

[@ranarajputana8021]

helo bhai can you clear my dought my question is convex mirror main focus toh hota he nahi aur uss focus ko ham bana the ha mirror ke andar aur centre of curvature kasa andar ho sakta ha convex mirror ke?? pls tell bro

[@OjasBhayal]

@@ranarajputana8021 See Bro As we know that convex mirror is a diverging mirror so the light Ray which falls on the reflecting surface of convex mirror get diverged and will not meet together that’s why we stretch the light rays backward means behind the mirror so that the light rays can meet.... Focus is formed behind the mirror because when light rays which are parallel will pass through focus and the light rays will diverg and we will not get the focus from the original light rays to get the focus we will stretch the light ray backward so as to get the focus of the mirror.. Same case is for Centre of Curvature Thank you

[@ranarajputana8021]

@@OjasBhayal ok bro thanks 🙏 bhai same with centre of curvature kasa hn issa bhi baata de bro

[@OjasBhayal]

@@ranarajputana8021 Jo mene focus ko lekar explain kiya usme focus ko remove kar ke Centre of Curvature ko rakh do Sub clear ho jaye ga

[@DTXA841]

Q-1 a) convex mirror as it gives a wide field of view.... b) concave mirror as it is a converging mirror and it will bring all lights concentrated at a point.. c) concave mirror as it gives magnified image of teeth. Q-2 R=2f R=2(10)=20 cm Q-3..... We can see our image in those mirror and can observe the following points : in plane mirror our image will be as same size as we are...... In concave mirror our image will be inverted or magnified..... In convex mirror our image will be diminished

[@GauravPandey-x7b]

1a=convex mirror b, c=concave mirror 2=20cm 3=we can distinguish by bringing our face very close to the mirrors. If the image of our face is of the same size of the face than it is a plane mirror, if the image is smaller than our face , then it is a convex mirror

[@anusethi1518]

1. Convex Mirror , b. Convex Mirror , C. Concave Mirror 2. F= 2R = 10×2 =20 3. In Plane mirror rays will remain parallel . In convex mirror rays diverges . In concave mirror rays converges. Thanks sir it helps alot 👍

[@nikhilsharma7523]

MY ANSWERS 1) a)Convex b)Concave c)Concave 2) The focal length of a mirror is R/2 therefore Radius of curvature will be F*2 = 10cm*2 = 20cm 3) A plane mirror does not converge or diverge the beam of light. The distance between the object and the mirror. In a concave mirror, we appear inverted and diminished when kept far away from us and when kept near to the object it appears magnified and erect. In a convex mirror, far away objects appear to be near. I hope all my answers are correct.

[@JyotsnaShukla-q9n]

Answer of 1=A. Convex B. Convex C. Concave 2. The radius 20. 3. Plane mirror have flat surface Concave mirror have magnified images Convex mirrors have short images

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[@ManochaAcademy]

It's my pleasure

[@tamannamishra2874]

1 .( A )convex mirror because we can see a wider view of the area (B) convex mirror because it converges the rays of light into 1 single point making the area hotter . (C ) concave mirror because it enlarged the image of the teeth 2.if f=R/2 then R = f × 2 R = 10×2 = 20 cm 3. In a plane mirror the image is of the same size as that of the object and the image is erect . In a concave mirror the image looks inverted when far away from the mirror and magnified when near the mirror . In a convex mirror the object appears diminished helping us to see a wider view of the area .

[@parachiswathi1009]

Your explanation is very clear and perfect . we understood very clear. Thank you sir

[@ManochaAcademy]

You are most welcome

[@zeddantonino2012]

My Answers: 1. a)Convex Mirror b) Concave mirror c) Concave mirror 2.F=R/2 so the if the focus is 10 cm, therefore the radius of curvature is 20cm 3. I will know the difference of each type of mirrors by just looking on how my image is formed

[@namanbelwalsreviews2581]

Q1. (a)convex mirror (b)concave mirror (c)concave mirror Q2. As we know that focal length is the half of radius and radius is double of focal length so radius is equal to double of focus Radius= 2*focal length R=2*10cm =20cm So the radius is 20cm 1 Q3.By standing in front of all the three •If the image is exactly equal to person or the substance. •If we go close to a concave mirror it becomes mangnified and if the distance is increased then it forms magnified and virtual image. •It will always form virtual image ,it will form an upright image if you are near the focus..

[@MukeshGupta-dy9gp]

a. Convex b. Concave C. Concave 2. 20 3. The mirror is erect in the plane mirror while in concave it is upright opposite to real when at a far distance and magnified when nearer and in convex the image is shorter or smaller than we are .

[@Adarsh-gx8hj]

Moaj kr di

[@deepabhide212]

1. a. Convex mirror b. Concave mirror c. Concave mirror 2. 20 cm 3. When we place an object in front of a plane mirror it is of the same height. In front of a concave mirror , it appears inverted. In front of a convex mirror it looks small and diminished.

[@NPmathstechinicalcluster]

Ans-। Convex mirror Ans-2. 20 Ans-3. By seeing our reflection in Mirrors.

[@salmaahmed910]

Dude this is the best thing I've watched and actually understood from 😭 Thank you so much 😭💘

[@ManochaAcademy]

Most welcome

[@mohamedmamdouh3172]

Hi

[@pranavkrizz1553]

@@mohamedmamdouh3172 exams tomorrow?

[@mehktaneja]

never understood mirrors this easily. Thank you for sharing sir!

[@ManochaAcademy]

You are most welcome

[@amandubey4624]

Q 1-( a) convex mirror (b) plane mirror (c) concave mirror Q 2- r= 20cm Q 3- Palne mirror is a mirror which has flat surface and the parallel beams are tracked on the surface and form a virtual image. Concave mirror is a type of spherical mirror which is only mirror that form a real image. Convex mirror is also a spherical mirror which diverges the rays and the image formed in it is dimnished.

[@meghaa.dawar21]

Hey I wanna talk to you about your answer 🖐🏻

[@loiseshiimi3204]

1.a) convex mirror b) plane mirror c) concave 2. 10×2= 20r 3.• On a plane mirror the image is the same height as the object, the image is also vertual, upright and lateraly inverted • Convex mirror the image is diminished and upright • Concave mirror the image is magnified and upright or inverted

[@joshitha9989]

b) concave as it is a converging mirror

[@khadijamujtaba2072]

1a convex mirror b plane mirror c concave mirror 2 focal= 10, radius= 2f r = 2*10=20. 3 plane mirror have plane surface Concave mirror is spherical and inward Convex mirror is spherical and outward

[@dennisfelicita122]

Corrrect

[@jetalkharadi3-arollno-202]

Anybody watching this video in 2024

[@loly6693]

😂😂😂me

[@aniruddhasahu5898]

Me

[@iqratrust5823]

Me❤😂

[@AdeolaAdenuga-xl6cq]

Yes lol

[@DreadDomain-q3c]

Me 😂 . Watching this for my O/L s

[@zeeyansheikh2185]

I searched out for many videos of lenses but I now think that why didn't I watched your video first? awesome video 👏👏👏

[@hrudayarani6815]

It's true

[@eduwafunmilayo9723]

1b.concave mirror 1c.concave mirror 2.20cm 3.a plane mirror has a flat surface and both object and image has same height, concave mirror produces an inverted image when it place far and produces a magnified image when placed near while a convex mirror produces an erect image with diminished size either far or near.

[@ajayrajsingh497]

Q1.ans.(a) concave (b) plane mirror (c) convex Q2.ans. radius of curvature= f/2 Here,f= 10 So,10/2= 5 cm Q3.ans. if image is in same size of ours then it is plane mirror. If image formed is inverted and magnified then it is concave mirror If image formed is diminished then it is convex mirror. Thank you sir for clearing my all confusion between concave and convex mirror. 😌😄

[@SAIF-ULLAH_56]

(Question first`s B part) "Concave mirror is used in the solar furnace because concave mirrors are the only type of mirror that reflects light toward a single focal point".

[@shaziyaazeez7319]

20 cm will be the right answer

[@adityavarman3013]

Anybody else watching in July 2024😂😂

[@NikhilPuri28]

Me

[@ourchannel1154]

Me

[@Joseph-i9c]

I dey watch some for July 😊

[@malinabanu6356]

Me .....

[@punam123mali3]

No! In 2025

[@respectthosewhodeserveit5192]

1.a) convex mirror b) concave mirror c) concave mirror 2. 20 cm 3. Plane mirror - Image is erect and same size Concave mirror - Image is inverted from a distance, but will become magnified when we move closer Convex mirror - Image is upright but diminished

[@divya_708]

Question 1. a.convex b.concave c.concave 2.20cm 3.by seeing in it as u shown

[@zeeshanali253]

awsome....I my self a teacher but never saw such a great explanation

[@hulejilucky]

1. (a).Convex mirror (b). Plane mirror (c). Concave mirror 2. Radius=20cm 3. Plane mirror has a flat surface Concave mirror is inverted Convex mirror is upright

[@kiddies_world8757]

How do you sum up and have 20cm???

[@rahmaahmed9066]

@@kiddies_world8757 Given F=10cm R=? We know the focal length is equal the radius of curvature divide by two F=R/2 Multiply the number of focal length into two 10x2= 20cm that’s all 😊

[@adeeshjain8925]

Thanks a lot sir You are making future of this country Best teacher i had listened to

[@ManochaAcademy]

Thank you!! Great to hear that you liked the video!! Do share it with your friends and family :)

[@BhalluBhallu-z1u]

Who watching this vidio in december 2024. 😅 but sir you explained very well 😊

[@AAS_46]

Legends are here 1 day before exam 🤣😅😅😅😅😅

[@habilsworld3375]

Correct

[@deathgamers4157]

Nope

[@rjvideos6509]

Good

[@SUBU197]

Yes

[@ankitgmr5658]

Yes tomorrow is my exam

[@asthaverma9520]

1A-. concave mirror B- plane mirror. C- convex mirror 2- 20cm 3-. Plane mirror has aplane surface ,concave mirror has a curved surface which is curve inside and last convex mirror also has a curved surface which curve outside

[@khatravathomkar9692]

Hii

[@khatravathomkar9692]

Replay

[@labyadav]

Ans no.1(a)- convex mirror Ans no.1(b)- concave mirror Ans no.1(c)- concave mirror Ans no.2- 20cm Ans no.3- If you will look around a mirror which has showing you in same size than it will be plane mirror. If the mirror is showing you big in the front of mirror and in backwards mirror showing you small and inverted than it will be concave mirror.If the mirror is showing you small than it will be convex mirror

[@ankitkumar9872]

Sir, thanks for this kind of explanation. Ans- 1. a- convex, b- concave, c- concave 2. Radious of curvature- 20 cm 3. We can distinguish by observing our image in the mirror.

[@pawankumarsingh4715]

6:06 it's a Cadbury's gems ball 😅😂 amazing prop for demonstration!!!!!

[@arunkumarm9718]

sir did not even cut it , it is the opening part of the gems ball

[@jiyaaaaaaaaaa10]

Yes, right 😊

[@abhisrecitation949]

Lol

[@MamtaDevi-ow9mk]

True🤭🤭

[@ipsitaparida4471]

@@arunkumarm9718 obviously omg

[@rajbirsingh8886]

1. (a) convex mirror (b )concave mirror ( c)concave mirror 2. Radius - 20 cm 3. Plane mirror is like a scale .

[@ManochaAcademy]

Very good!! Q1 and Q2 are correct! Q3 Different mirrors will give different types of images. That's how they can be identified. Do check out more videos at bit.ly/2KBC0l1

[@TheATIXGO]

Tomorrow is my physics exam, and when this topic was taught in online classes I muted it and played game. But sir, you helped me a lot, Thankyou Sir.

[@ManochaAcademy]

Most welcome

[@TheATIXGO]

Ff

[@surendrarajput9609]

Abe dhyan dena chahiye tha na sala game ki dukan

[@playmania1277]

@@surendrarajput9609 🤣

[@V-Channel5686]

Q1: a) Convex b) Concave c) Concave Q2: f=R/2 10=R/2 R=20cm Q3: Bringing our finger/face close to each mirror.

[@Kiminja194]

Correct ❤

[@gayathrivr]

Brilliant way of teaching

[@ManochaAcademy]

Thanks

[@davidarmitage22]

@@ManochaAcademy welcome

[@BaljinderKaur-gp9sh]

Tell me all the questions

[@YuvrajSingh-rv1pl]

Very nice yes you say right brilliant way of teaching

[@aaeshkashayp7533]

Q1= A) convex B) concave C) concave Q2= R=f2 then f=R/2 R=10*2=20 Q3=By seeing the mirrors Two for saying so nicely sir monarchy academy

[@MyMediSquare]

Bhuvana Vijaya it’s manocha academy not monarchy academy.

[@aisha0606]

This topic was very confusing I had watched hundreds of videos but never understood the topic now that I have watched your video all my doubts are cleared. Thank you!

[@Allinone-si3tf]

*Note* : *Concave mirror is inverted but except one case...that is when the object is in between the Focus and pole the the image is* 👉 Virtual image 👉Upright or erect 👉Enlarge or magnified image So shaving mirror is holds this case

[@abdullahnafees4133]

Wow 😮 man what a class on mirror !! Thank you 🙏 Sir The concept is totally clear to me now ❤️

[@ManochaAcademy]

Glad to hear that

[@bhavanarathod298]

@@ManochaAcademy realy

[@aamffgaming9407]

@@bhavanarathod298 no

[@harshith9943]

😒😒