Refraction of Light

What is Refraction of Light? Refraction is the bending of light when it travels from one medium to another medium. Refraction is caused by the change in speed of light.
In the beginning of the video, we show a Magic trick based on refraction! We discuss the different cases of refraction of light in detail: When light travels from a denser to a rarer medium and from a rarer to a denser material. Also when light is incident normally on a medium.
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[@DreamFunHAS_]

*NO*

[@HithikshaS-j5r]

1.it bends towards the normal 2., a ray of refracts when it travel from 1 medium to another medium 3.yes

[@safeerkhan8098]

​@@HithikshaS-j5rAway from the normal Hm

[@abeljoseph5463]

Answers for the questions asked in the video, A.1) When light travels from water (optically denser medium) to air (optically rarer medium), it's speed increases which is why it tends to move away from the normal. Here, Angle of incidence < Angle of Refraction A.2) Refraction of light occurs when the light ray travels from one medium to another medium. The reason behind this is because the speed of the light changes while doing so. For eg, when light travels from air to glass, it's speed decreases which is why it refracts from it's original path. Whereas when light travels from glass to air, it's speed increases which is why it bends away. A.3) Yes, a pool appears to be shallow when viewed normally as the refraction of light comes into play. First time seeing your video and I absolutely liked it 📝👍🏻

[@DL7igmawlong]

Thanks for ur answer bro

[@nagakumarikommana1443]

Thanks for your answers

[@waitaminute7554]

1. It will bend away from the normal; most probably towards the right and the angle of refraction would be larger than the angle of incidence. Also, the speed increases as the density of the material decreases. 2. Refraction takes place because of the change in the speed of light. This happens if a medium is either denser or less dense than the other. 3. Yes. The pool appears shallower because of the bending of light or the refraction of light.

[@agastya_10a57]

Q1. Ans.When the light travels from the denser medium to the rarer medium,the light rays travel away from the medium.Thus,the angle of incidence < angle of refraction. Q2. Ans.The cause of refraction of light is; Change in medium. And change in speed of light. Q3. Ans.Yes,the pool appears to be shallow when viewed normally because of refraction. Hello Sir, it was very useful for me. As I am a physics lover,I enjoyed the class.

[@smritimondal1057]

1) When light travels from water to air, it bends away form the normal 2)The cause of refraction is the change in velocity of light when traveling from one media to another as the optical density differs. 3) The pool appears to be shallow as light is traveling from air(an optically rarer medium) to water (an optically denser medium)

[@darshanlal2394]

F

[@i_am_esea_dedej9633]

This video was more helpful than my physics teacher

[@AliHussain-pu1mt]

Same

[@sanjaythakare5787]

Yes same with me.

[@Vlogs.936]

Same

[@adilkamar8935]

Correct

[@mycreativelearning3418]

SS same maa siru chaptadu chuudu niddara vastadi raa sami ranga.. Asulu vakka mukka kuuda artham kaadu... Ee sir chaptante 👌👌👌ga artham avutundi...

[@AnushkaPashankar18]

Such A beautiful way of teaching, as due to online school many concepts doesn't get clear but manocha academy clears it all ☺thank you much

[@irshadpasha3697]

Wow it's true

[@vinitasharma4504]

Yes

[@ydettearano6187]

Its a great help for those teachers who struggled in teaching physics, its very informative and your explanation is very helpful. Thank you so much

[@ManochaAcademy]

It's my pleasure

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[@tejaskumarshahi3828]

@@AquilaPlaysYt tum beluga ka vedio dekh te ho 🙄🙄🙄🙄?

[@AquilaPlaysYt]

@@tejaskumarshahi3828 Yes

[@MayowaOluwatoyin]

1.) The light bends away from the normal. 2.) Refraction occurs due to the change in the speed of light 3.) Yes because of the refraction of light

[@sangeeta789]

Can you explain your first answer

[@raneenaleen2301]

@@sangeeta789so it travel from water to air and air is less denser than water so it will move away from the normal

[@sangeeta789]

@raneenaleen2301 thanks 👍🙏

[@hemendeka6531]

1) When light travels from water to air it bends away from the normal as water is optically more denser then air. So the speed of light increases from water to air. 2) Refraction of light takes place due to the change in the speed of light as it passes from one transparent medium to another obliquely. 3) No, a pool does not appear to be shallow when viewed normally. This is because : # no refraction takes place when light is incident normally.

[@Obessedwithyou2828]

*Answers of the TOP 3 QUESTIONS:-* 1) When light travels from an Optically denser medium (water) to an Optically rarer medium (air), it bends away from the Normal. 2) Refraction happens due to change in speed of light as it passes through different mediums. 3) No. In this case, if the normal view is perpendicular to the pool, then the pool won't apper shallow. As the light will pass perpendicular to the pool, so it won't bend. I hope my answers are all correct!! ❤

[@sweetyroy231]

1.) Water is more denser than air, so when light travels from a denser medium to a rarer medium, it bends away from the normal. Hence, when light ray travels from water to air, it bends away from the normal. 2.) Change on speed causes change in the direction. This is refraction 3.) Yes the pool appears to be shallow when viewed normally. Sir here are my answers 👆🏻. Are they correct sir? Thank you sir for the awesome video..😊

[@moudgitsidali738]

They are correct son accept the question 3

[@annrose6765]

If it's npbiewed normally then it doesn't appear shallow no?

[@Pagalworldieiron]

1) when light travels from water (that is relatively denser medium) to air (that is relatively rarer medium )it bends away from the normal.. 2) the main casue of the refraction of the light is the bending of light when its travels from a transparent medium to a another transparent medium with higher or greater optical density.... And when light travels from one medium to another its speed slows down and hence as a result the light ray bends . 3) yes and it is because of the refraction of the light 2)

[@Nishantkumar-bg1ro]

answers : 1. Away from the normal 2. change in speed of light 3. Yes

[@sandipanganguly2219]

ANSWERS 1. AWAY FROM NORMAL i < r 2. BECAUSE OF THE CHANGE IN SPEED OF LIGHT 3. YES

[@Dev_bhog]

1. The light bends away from normal. 2. The cause of refraction of light is change in the speed. If the speed is lesser then the ray of light comes near to the normal else it gets far away. 3. Yea

[@Alizain-l7h]

Ans1: When light travel from water to air means denser to rarer its bends away from the normal. Ans2: Refraction of light cause due to change of speed and cause by optically density of the medium. Ans2:Yes.Pool appear to be shallower than they actually is due to phenomena called refraction.Pool looks shallower due to light bends on water surface making object under water aapears higher.

[@baileygilbert5763]

1. Away from the normal 2. When a light ray goes from a medium to a denser or rarer medium. 3. No, This is becuase there is no rarefection of the light so you are seeing with no bent light. Only the speed of light changes.

[@diiya123]

Sir.. Truly u r amazing.. Excellent... Such a fantastic teacher u r... Ur videos are the best compared to any other online coaching classes.

[@ManochaAcademy]

Thanks a ton! 😊

[@vyneel]

Wow... this is really helpful. You're better than my physics teacher! Ans: 1) away from the normal 2) the change in the speed of light 3) shallow (i think)

[@ratansinghshekhawat4530]

Question 1: light will bend away from the normal. Question 2: The speed of light is different at different medium, less in denser and more in rarer, when light ray enters a denser medium it's speed decreases and bends towards the normal and in rarer medium it's speed increases and bend away from the normal Question 3: As the refraction of light is more so pool appears to be shallow when viewed normally

[@Idle_Jess28]

Q1) Away from the normal Q2) The slowing down or increasing of light as it enters a new medium. Q3) A pool might appear different depending on the path of light and its refraction.

[@s3kshii]

Manocha Academy is better then any other study aap...

[@padmakaryanamandra8436]

Sir, if i have any chance, I'll give you a best teacher award. We don't need to read books after listening to your classes.

[@blueyuki1]

even tho this video is 5 years ago and today is 2024, this is honestly still one of the best education video ever, it gives me terms, its so easy to understand!, even a fifth graders understand this!, thanks for producing one of the best education video ever, this is so easy to understand! Q1 It goes to the incidence ray (which means go down) if theres a situation that the ray is reflecting flat like absolutely then it wont change the direction it will be the same) Q2 Well, depends on the density, if the density or medium is strong then it can refracts Q3 Because our eyes are not that wonderful, we will see them as its not that far when touching the swimming pool but in reality its tall, the eye just got tricked by the refraction of the light to the pool.

[@mastifunn2012]

1 . the light ray travels away from normal 2.the refraction occurs due to change in medium ( could be denser or rare than the first medium causing light to bend away or towards normal ) 3. The pool looks more shallower as our eyes tends to look the pool with light ray straight but when the light enters from rarer to dense medium it bends towards normal causing to look more shallower

[@p.akshitha588]

Top 3 questions answers 1.Away from the normal 2.Due to the change of speed of light refraction takes place 3. Yes As we look into a pool, our eyes now absorb light from a denser medium(water) in comparison to a rarer medium(air) . Hence, the light gets refracted and the pool appears shallow

[@noahsan5221]

In our exam they asked "Is angle of incidence=Angle of refraction?" I answered =No Just because of you and the question is for 2 marks I got 2 marks by you sir,THANK YOU!! no one wrote correct in my class except me 😂

[@rajashekharmenda1179]

Answer 1: light bends away from the normal as it travels from denser to rarer medium Answer 2: change in the speed of light when it changes its medium causes refraction Answer 3: No as there is only one medium i.e. air there is no refraction taking place. As there is no refraction of light the pool doesn't appear to be shallow Plz reply Thanks for explaining the concept

[@harisankarlal6895]

Q1: When light travels from water to air, it bends away from the normal. Q2: The cause of refraction of light is the change in the speed of light when it enters the second medium. Q3: Yes. A swimming pool does appear to be shallow when viewed normally because refracted ray of light after reflecting from the bottom of the pool changes its direction on entering the first medium which is air.

[@beastwolf5636]

ANS:1= when the light travels fr denser to rarer the speed increases, and it would change its direction away from the normal ANS:2= the speed of the light changes in air=3 x 10 8 m/s and in water 2.8 x 10 8 m/s ANS:3 yes it appears to be shallow because of the refraction of light bends through towards normal Thx for you viedo 🤩

[@Rashidkhan-tp2op]

1st answer Light bends away from the normal when it travels from water to air. 2nd answer When the waves encounter a surface or other boundary that does not absorb the energy of the radiation and bounces the waves away from the surface. 3rd answer Refraction of light as the surface of water makes swimming pool appear shallower then its actual depth when viewed from directly above. ❤❤❤❤❤❤❤❤❤ That is my answers GOD BLESS YOU TEACHER

[@maccaesar2250]

1.it will bend away from the normal because the ray of light is from a denser medium to a less medium, making the angle of refraction larger than the angle of incident 2.The difference in the speed of light in different media of different densities. 3.yes it appears shallower because there is a change in the speed of light as it travels from air which is denser than water in the pool...

[@adithyap8366]

Q.1 - It will bend farther away from the normal Q.2 - the cause is the change of speed of light when passing through materials Q.3 - Yes

[@craftyandstudy3123]

Q.1 answer- the light ray bends away from the normal Q.2 answer- the change in the speed of light ray when it passes through one transparent media to another is the cause of refraction Q.3- yes,as refraction is taking place

[@rithizx]

HW: 1) The light when it is travel from water to air ..it bends away from the Normal ,i

[@sidakmakker1846]

I honestly love this guy !!! I would prefer every kid to watch his videos !! Man he's perfect 😭😭❤️

[@devabushanrao2794]

Q1: the light travels away from the normal since it is traveling from an optically densar medium to optically rarer medium. Q2: The cause of refraction of is the change of the speed of the light when it enters into different medium( different optical density). Q3:No, the pool doesn't appear to be shallow as the refraction doesn't takes place in the case when it is viewed normally

[@ayrazee]

Actually 3) Refraction of light at the surface of the water makes swimming pools appear shallower than its actual depth when viewed from directly above

[@pinkirajput7237]

Ans 1 it moves away from the normal Ans 2 speed is changed Ans3 yes

[@karthikkadaru4606]

I might be wrong but I think the ans for the 2nd question is the change in the medium

[@vilasinisharma27]

My physics teacher don't know how to teach and I thought I was really gonna fail my boards but I am glad that this teacher is on KZbin the style of teaching is very good ......

[@ak_gaming_1m435]

Legends are watching this video now😜 due to tomorrow's physics exam.🤣

[@moorthythangavel6268]

Yes bro you are 💯 correct.😉

[@harshusvlog8152]

🤣🤣 yes bro

[@TiTxNzz]

Tomorrow we have exam? What is the portions 😂

[@greyrhus8030]

Yeeeee true

[@TiTxNzz]

@@greyrhus8030 watching that now? After exam

[@lillyrozy1950]

Sir please take special class for 10 th class children in school after a long break iam not understanding anything in my school do special videos how to score good marks in physics take test and reveal ans in next video but plz take special care on us plz explain everything and every lesson in physics this is my humble request hope I will get a happy reply by u

[@aroxnav]

i agreee

[@SUDHEERKUMAR-xt1zo]

1A. it bends away from normal 2A. changes the speed of light 3A. yes, because of refraction

[@GuguGwebu]

It's so helpful even 2024😊

[@Bob_Goat]

Yeaaaaa

[@pawnichopra846]

I understood everything......very nice teaching pattern

[@arctic215]

1. Away from normal. 2. Change in speed of light. 3. No because it's viewed normally. Sir; please reply if all are correct.

[@ManochaAcademy]

Super!! All are correct :)

[@lilsharx8560]

thanks sir you explained the best of all teachers i have ever met

[@ManochaAcademy]

Great to hear that you liked the video! Thanks :)

[@chauhanrudrapeicaiss9748]

1)Away from the normal 2). The speed of light changes when it passes through different mediums . And according to the law of refraction light bends away from the normal when increased in speed and away from normal when slower 3) Yes as the water in the pool is optically denser and thus leading to a decrease in the speed of the light which then ultimately leads to the bending of light towards the normal . But light reflected to our eyes is not bent thus we see a shallower pool . Am I correct ? Question: is refraction used to in our daily lives ?

[@MayowaOluwatoyin]

Still very useful till 2024 I'm I right guys?

[@GoDxRaGe009]

Ans. 1- It bends away from normal Ans. 2- Cause of refraction of light is that the speed of light is different in different molecules. Ans. 3- Yes pool appear to be shallow because of refraction of light

[@b_for_beauty1610]

I really like the method of teaching it's superb it has solved my many questions popping in my mind

[@ManochaAcademy]

Glad to hear that

[@dhavanish]

Love the explanation had confusion for 1 day but not anymore best refraction Video

[@ekshithsaigunakarpasala4391]

1)away from the normal 2)the cause for the bending of light is the change in the speed of light 3)yes

[@honeytwena1608]

1Q:- when light travel from water(denser) to air(rarer) it bends away from the normal. 2Q:-The main cause is when light travel from one medium to other medium, the speed(velocity)of light changes it leads to bending of light 3Q:Yes,pool appear shallow when viewed normally.

[@rekhasreelesh613]

Sir your way of teaching is very good now my daughter is able do learn everything Thanks a lot

[@ManochaAcademy]

It's my pleasure

[@GopinathPoonjali]

1.Away from Normal. 2.Change in speed . 3.Yes it appears be shallow because of refraction of light.

[@polur.maryprasad3275]

The best and clear explanation 👌👌 . I ever had . Really I loved it . I thought physics is most difficult subject after listening to yours explanation I really stream it.

[@ManochaAcademy]

Glad you liked it

[@sabithach2337]

Sir..... Please upload a video on TOTAL INTERNAL REFLECTION....

[@nisfirchanh187]

Fun fact: The "magic trick" works only with a round glass, I tried using a square one and nothing happened.

[@gauravmehrotra6315]

Answers of the top 3 questions!! 1. Since water is optically denser than air, light will move away from the normal. 2. The cause of Refraction of light is the change in speed and material. 3. Yes, it appears shallow due to the Refraction of light!! Thanks a lot for this video, sir 🙏🏻

[@zahidhameed2076]

ur right😊

[@Arhamkothari753]

A:1-The light will bend away from the normal. A:2-Refraction is caused by the change in speed of the light when it travels from a denser to rarer or rarer to denser medium. A:3-Yes,it's because of the refraction of light.

[@ManochaAcademy]

Very good!! Answers of Q1 and Q2 are correct :) Q3 By normally it means along the normal. So light will not bend. That's why pool does not appear shallow. Also try the Quiz for this video: www.manochaacademy.com/physics/light/l/refraction-of-light

[@cathydepatoy6615]

I Love you're videos @ManochaAcademy

[@cathydepatoy6615]

And you are the best. ❤❤❤

[@satyajeetdas1535]

1.bends away from normal 2.diffrence in the density of the medium through which light is traveling through 3.yes,due to refraction of light

[@slowpy_.]

Correct brother

[@manojjoshi4110]

When light travels from water to air the light will bend away from the normal as water is a denser medium than air so as soon as the the light it reaches in the rarer medium it bends away from the normal 2- the cause of refraction of light is speed of the light as we know speed of light is different in different different mediums during which the different speed of light in different mediums result in the refraction of light. 3- yes the pool appears Shallow as we look from the above this is because of the refraction off the light All three ans Let me know right or wrong???

[@zaeemgaming5090]

Even though he uploaded this video on 2018 its still highly active in 2022

[@deborupdas5326]

U r right

[@rehanmanzoor4198]

SIR YOUR TEACHING SKILLS ARE MAZING

[@ManochaAcademy]

Thanks a ton

[@anushkabhowmik8201]

What's mazing?

[@pragnap5139]

@@anushkabhowmik8201 I guess amazing short form

[@anushkabhowmik8201]

@@pragnap5139 well..God knows...I'm literally unfamiliar with these short forms

[@malaikarajput1744]

1) away from normal,2)the light bend when it travel from rate to denser or denser to rare3)no when light passes it will look shallow

[@malaikarajput1744]

@manochar academy reply plss

[@harigona3405]

Wonderful lecture sir!! I have now understood the concept superbly. . Keep continue this good work... And help ours now everything about education

[@ManochaAcademy]

Great to hear that you liked the video :) Thanks!!

[@technologytobeloved4003]

1) Away from normal 2) Change in the speed 3) Yes

[@yoganandar995]

sir your explantion is really outstanding 😎 I think U deserve oscar award👍👍

[@ManochaAcademy]

Wow, thanks

[@shahdkhaled8149]

You are waaaaaaaay better than my class physics teacher. Sending lots of respect from Egypt 🙏

[@ManochaAcademy]

Thanks for liking, Happy to help.

[@cathydepatoy6615]

I Love your videos 😊❤❤❤

[@BarnikBasuFSXI]

Sir, you are my most favourite teacher. I am grateful that I have got such a teacher like you. Sir, you have cleared many complicated concepts of mine. Thank you 🙏

[@ManochaAcademy]

It's my pleasure

[@lorrd4588]

This is soo easy to understand . it is explained soo well sir.

[@Christian-bj4rp]

who else doing physics in quarentine?

[@khushinagar321]

Me

[@kartavyaverma2780]

Meeeee!!

[@kartavyaverma2780]

Ur quarantine spelling is wrong, correct it,😂😂

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@@kartavyaverma2780 or just tell me politely man

[@kusumchaudhari1315]

it is really very helpful for study and doubts.

[@ManochaAcademy]

Happy to help

[@soulgaming9622]

Sir you should join byjus as a teacher. Your teachering skills are just amazing!!! 😃

[@amaianime1293]

1) away from the normal 2) the density of a medium 3) no the pool appears to be deep due to the refraction

[@kiraneducationalacademy9006]

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[@peterkyeremeh4416]

Question 1: Light will bend from the normal Question 2: There is a change in speed of light as it enters a different medium Question 3: Yes, you mentioned that in your speech

[@kartdwayson]

Bro which country are you

[@RAVIKANT_MISHRA69]

Who are watching in 2024

[@raghava74]

Mee too broh😂✌

[@nagrajbanjara2244]

Mi also bro

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Just finished watching it

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Humans

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Me the legend

[@bapisaha8212]

1.When light travels from water(optically denser medium) to air(optically rarer medium), it bends away from the normal. 2. Refraction takes place due to the change in speed of light when it enters from one transparent medium to another. 3. No, a pool does not appear to be shallow when viewed normally because there is no effect of refraction when the light ray falls normally.

[@raghumalhotra7799]

Third one is no..there is no refraction for normal incidence..we will able to see real debth when we view normally

[@bapisaha8212]

@@raghumalhotra7799 Thanks for rectifying me.

[@raghumalhotra7799]

@@bapisaha8212 most welcome brother

[@FeridaMohammed-rf4xd]

1.)Away from the normal 2.)Change in speed of light 💡 3.)Yes it appears shallower when views from above

[@sandeepjakhar5210]

Manocha academy is better than byjus and vedantu academy. 😉

[@ManochaAcademy]

Glad to hear that.

[@pipemongullie7111]

Sir, following all your lessons and being profoundly helpful in getting to know the concepts. A request to you if you can make a lesson on magnetism as well.

[@ManochaAcademy]

Great to hear that you like the videos!! I'll try to make on magnetism as well. You can also try the Quiz and Top 3 Questions for the videos on my website: www.manochaacademy.com

[@halfaheartgaming6195]

Someone's in 2024😅

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2024

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2024😅

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Me😅😅

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Right before exam 😂😂

[@mdnaseem6825]

Me

[@keshabpradhan5964]

1- away from the normal 2- change in speed of light causes light to bend 3- Yes 👍

[@Musiclover-sk6sz]

This is the best way of explaning the topic

[@Musiclover-sk6sz]

👌👌

[@mikeyuchiha8797]

1) Light bends away from the normal. 2) Change in speed of light when light travels from one medium to another medium is the cause of refraction. 3)Yes. It appears to be shallow because of refraction of light.

[@dineshsheela9]

This man is saving our tution fees..🥰

[@princearpiar6475]

lol XD

[@muneebasiddique3557]

1). Light directs away from the normal 2). Light travelling in obliquely direction from one medium to another 3) no when we look normally, bending of light will not visible.... to observe it must look diagonally

[@Najmabdullahii]

0:53 yes it is amazing

[@tssaranlalbk7319]

But why the bending occurs only in oblique positions, if the velocity change bend the light then why don't the normal incident light bend, eventhough the velocity is changing?. Is that means the velocity change doesnot actually the core reason for refraction?🤷‍♂️🤔

[@machahitheshkumarreddy4334]

Q1) right. Q2) due to changing of medium. Q3) yes.

[@pasupuletiramalakshmi870]

1.away from normal. 2.change in speed of light. 3.yes,pool appear shallow. Pls reply to my answers

[@s.saivarun1541]

Sir thank you for your brilliant explanation. I understood a lot about physica sciencel from the videos you made👌

[@ManochaAcademy]

Glad to hear that

[@murker69420]

👍👍👍This Video Was One Of My Teacher's Reccomended Videos About Light. Thank You So Much, Sir. Nice Explanation!👍👍👍

[@ManochaAcademy]

Most welcome

[@srinithigl3229]

Sir very much thanks to you I am preparing for my boards and I had a doubt on this topic but now i am very clear on this topic Thank you sir 🙇‍♀️🙇‍♀️🙇‍♀️

[@ManochaAcademy]

All the best

[@kwikirizasarah8186]

You are a blessing to this generation May you prosper in all your endeavors

[@yungvipe7227]

Its 3am and I'm studying for a test in the next 5 hours and I haven't had any sleep

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Dude studying is good and everything but get some sleep..

[@koushikdas111]

How marks you get at board bro

[@muskan3487]

U must study before exam so that when everyone is getting worried about exams u r sleeping at that time that's the spirit of board exams this year I am going to attempt board I wish I will get good grades 👍🙏🌼🌺🙏🙏

[@shardapatel5780]

@@muskan3487 me too 😳😇🤞👊

[@shivaparavathi.ssst1]

@@muskan3487 me too

[@nishakunj5533]

you make concepts very joyful to understand. ......Thank you

[@ManochaAcademy]

Glad to hear that

[@nishakunj5533]

@@ManochaAcademy It's pleasure getting a rply from u sir

[@PRANITHXYZ]

Hii

[@ManochaAcademy]

Click here to try the Quiz and Top 3 Questions for this video: www.manochaacademy.com/physics-cbse-class-10/refraction-of-light/l/what-is-refraction-of-light

[@geofferyromany4634]

Thank you. Middle age male learning physics and chemistry at ordinary level at home with no teacher except youtube and no labs, thanks you very much. Headaches less.