Practical-11 Focal length of convex lens

[@chougulerajesh5]

Today all Puc second year annual practical exam 🎉all the best all of you🙏

[@rovi1600]

We are getting 21cm because graph drawn is wrong. In y axis it goes as 10,20,30,.... and in x axis it goes as 26,28,30,.... The Scale is not proportional. So, If both x and y axis is taken as 10,20,30,.. Then we will get distances equal to 2f where bisector intersects on both x and y axis. So we will get f like this. (2f+2f)/4= 4f/4= f

[@Vcontube]

Wonderful explanation Maam, Thankyou 😊

[@ebadurrahman797]

Mam im getting 21 after adding 50+34/4=21 and not 10

[@Zedeezia]

You should flip the lens to check the difference of the point of observer. This was a great study though.👍

[@ladamanadaf2326]

Say about, Refractive Index of water using concave mirror and convex lens!

[@gopikashaji4010]

I wish my ma'am also explained like this

[@mubeenakhanum2328]

Thank u so much maam you are a great explainer

[@zbgaming2009]

lens should be kept in between F and 2F which was calculated approximately like in ur experiment it was 10 or lens beyond 2f plz tell mam if we keep in between F and 2F value r cming higher like urs was 10 but if we calculation 50+34/4 its cming 21 wht to do plz tell

[@imrnusaib689]

Riniith eeban here i missss this

[@gagan.sshivakumar9624]

Thank you very much

[@BasvarajKhangond-ij4hw]

Nice teaching mam😊

[@ashmithkrishnaraajkumar6793]

In the final equation why should we divide it by 4

[@neoncatplayz6949]

Formula oa+ob by 4 So 50+34 by 4 is around 22

[@venujohn988]

Mam every convex lens we use in lab will be having focal length of 10cm ?? Bcz I am getting 21cm focal length

[@nikhils1500]

Yea me too!

[@dishanthd874]

Focal length is 10 it should come 20 not 21

[@Hakuna_matata699]

Focal length varies by our object we take to get rough focal lengtg

[@tanveertanveer6287]

U can check the focal length of the lens manually without performing the experiment for assurance

[@DARCiusmercurY]

We're getting 21/22 too

[@ayeshabankur860]

Mam please say about focal length of convex mirror

[@sheelagr1526]

Concave. ..

[@md.yusufmwalikar3219]

10cm

[@yadaiahmedishetty9157]

Nice explonation

[@SurendraSBansode1972]

Bhai mera to 37.16 f1 and f2 aaya

[@ChithuNinaivil]

Very Nice Explanation Mam 🖐️

[@narasimhayadav7800]

Your superb mam explanation also superb mam

[@ffkannadiga7339]

thank u mam

[@unknowngaming1472]

Mam u have said tht, it should be between f and 2f, but u have taken u as 34 cm in tht grpah, and reading thn it is wrong na mam?

[@Anytimeme_]

all clear thank you mam

[@yuvaprasath4324]

We can get the Image and take any cm mam

[@sugarcrane7982]

thank u ❤❤

[@aishwarya_b_r3002]

Perfect explanations tysm mam

[@rohinip4469]

isn't it that object distance "u" should be negative?

[@cherryluv2159]

Yes, u is negative and v is positive.

[@shabarisha.kkonemane9807]

Say about refractive index of water my exam on 31st January before exam you will be say

[@hari_ram_j2158]

@John Durairaj jd sir neega jail irundhu release ayyitigala ,eppo anniga sollavailla

[@sussyuchiha5780]

@@hari_ram_j2158 adhaana, sollave illa

[@anujraut6299]

Ye sabhi practical 2022 ke syllabus me hai kya mam, and same cbse me bhi hai kya mam

[@shahidaunnisashahidaunnisa7001]

Wonderful 😍

[@jaimedpcaus1]

Can Convex lenses be stacked?

[@johanbenny2869]

why should you care?

[@MagiMagiLJSDan]

Hi

[@sravanboi4205]

@@johanbenny2869 why should'nt he?

[@thusharajith5237]

@@johanbenny2869 nerd moment

[@msmudigoudra4815]

You have done good work mam✨️😍

[@yuvaprasath4324]

At last take any cm mam

[@JeevanSamagar]

Thank you 😊

[@RaviKumar-tx5tk]

Very good explanation miss... 👍

[@nandithahr9336]

Osm mam🥰

[@iam_sbm]

Thank you

[@yuvaprasath4324]

We can take any cm mam

[@rahulkamble5955]

🙏🙏

[@sharadaugare4214]

Will b theoritical value of f will b given?

[@pravish1249]

No

[@LolBoy-qp6vb]

ngl.. i understood this way faster than what they shown in school

[@muhammedfaaz7764]

Hi bro 😳

[@LolBoy-qp6vb]

@@muhammedfaaz7764 hi 😂

[@GuruPrasadCT]

When you can directly get focal length from sun as object , PUC making them complicated for no reason..

[@abhishekabhi8603]

Thank you mam

[@jesusthelightjesusthelight9170]

Jesus bless your family 3 Super Madam

[@rupagandhi4812]

Thank you so much miss

[@balupatil309]

Mam which college

[@ganeshnaik4191]

tq mam 👌

[@maheboobgodihal1257]

Mam please in Hindi

[@akithememegod260]

OMG THANKS

[@phumudzomamatsiari787]

thank you

[@Beyblades501]

Hi mam convex mirror using a convex lens video send me mam

[@MagiMagiLJSDan]

Hi

[@krithikaprabhu7781]

Thank you mam

[@manish9902]

Thank u mam