DERIVATION OF LENS FORMULA
ฝัง
- เผยแพร่เมื่อ 2 ต.ค. 2024
- In this video learn how to derive lens formula for thin lens.
A lens formula may be defined as the formula which gives the relationship between the distance of image (v), distance of object (u), and the focal length (f) of the lens.
1/f=1/v-1/u
#LensFormula
#putB'F=BF
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Keyword
Lens formula in hindi
Lens formula derivation
Lens formula class 10
Lens formula class 10 in hindi
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Use the f small for focal length
It's difference to the focal point
This video was very helpful and simultaneously fantastic 😊😊😊😊
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Wonderful teaching sirrr😍😍
Sab smjh aa gya great
nice to have a teacher like u 🤗🤗
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Sonali Kumari chal
6:13 it should be b dash f instead of bf,,,,, by the way very nicely explained and presented...liked it
Yes
Yup
Again one mistake sir .
(AB/A'B'=OE/A'B'=OF/BF=F/V-F) is wrong.
(AB/A'B'=OE/A'B'=OF/B'F=F/V-F) is Right.
Sir angle adash bdash means what angle
Very good explanation Sir, thank you. But it's my request to you please post with out the subtitle. Because the points you have written are hiding behind the subtitle.
We will consider your feedback in the up coming videos
@@kamaldheeriya Thank you Sir
off karo bhai
your derivation is simply super sir
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Sir apne BF=V-F likha hai but wo to B'F=V-F hoga na??
Yes u r right, i have written that in tha flow, plz consider that
Ok sir
YOUR VIDEO IS VERY HELPFUL FOR ME THANK YOU SO SO MUCH 😊😊
The way you teach ......it's fantastic 👍
Ur explaining skills r too gud😄😊🙌
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How can BF=V-F. It should be B'F=V-F
Yes u are right i have made B' as B i forget to put B' there but i have put the wright value there, so just there ia mistake of B' ONLY plz consider this, rest whole derivation is correct.
Lens formula can also be written as
uf-vf= vu
Is it correct
Yes
Sir apne bahut bar B' ko B bataya isliye clear nhi hua
Ha woh B'F hai
Hi, i have a doubt. We used sign convention in the derivation right? Soo do we need to apply sign convention again while solving questions using this formula? if so, then why.
Same doubt bro..
Did you got the answer?
Thank you very much sir i was not getting this derivation from anywhere but now i got it.
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This made me easy to learn lens formula but it had some mistakes
sir,is there any reason for the farmulla of the lense that we can write in the form of reciprocal(1/F=1/V-1/U)???
WHY WE CAN NOT Write in the form of F=V-U??????
No u cannot write formula like F =. V - U but you can write it as UV = UF - VF you have to take first lcm the you will reciprocate it.
Bhai basic math hai both are not equal to each other
Not so good sir
I am still confused... on left side ratio both ratios will have negative sign. negitive will cancel negitive sign .. so correct formula will be 1/f=1/u + 1/v. .. as given in textbook. same as mirrors equation.
Itna confidence kaha se late ho proof karna hai lens formula mirror formula kyu derive kr rhe ho
on left side we compare height of object with height of image where image is inverted so we put nagitive sign with height of image. same case for 2nd similar triangles. in text book I have same formulas for mirror and lens and looks logical too.
concave mirror and convex lens have same formulas maybe
th-cam.com/video/306m-ST0SVU/w-d-xo.html
Check this for concave lens same lens formula derivation
Sir bahut hi accha padhaye apne par ek confusion h apne ek jagah last me B'F ke jagah BF kaise ho gya in tri. EOF &A'B'F Plzzz sir tell me plz reply fast sir
+nadeem alam it is B'F only not BF, as i am unable to correct it in this video i will make a fresh video for it.
+nadeem alam take it as B'F only
Thank u sir
+nadeem alam u can check playlist of my channel for more, video of mathematics and. Physics.
Mai bhi yahi soch rha tha comment krne se pehle yahi dundh rha tha ki kisi ne to pucha hi hoga
Thanks sir very help full for me
Sir but hume pata kaise chalega ki woh angle 90 hai ki nahi
Object ko perpendicular to principle axis rakhoge toh image bhi perpendicular to principle axis banegi
Thank you sir
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Sir one more request was there that can you make motivational video of board class 10th to 12th and tips for studying we will be very thankful
Ok
SIRr,is there any reason for the farmulla of the lense that we can write in the form of reciprocal(1/F=1/V-1/U)???
WHY WE CAN NOT Write in the form of F=V-U??????
Nice video .Sir diverging lens ka 4MULA derive kaisa kare
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Thik ha sir kya appna lens maker formula ka video banaye ho?
Yes banaye hai link is here th-cam.com/video/PXgAKK_nDUo/w-d-xo.html
you need to read understand and explain a bit more
What problem u r facing tell mee
SIRr,is there any reason for the farmulla of the lense that we can write in the form of reciprocal(1/F=1/V-1/U)???
WHY WE CAN NOT Write in the form of F=V-U??????
Sir, it's very helpful . You are very nice teacher. Thanks a lot
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You're great sir because you're help me
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U writen wrong BF=v-F
Mistakenly but corrected in next step
1/f = 1/U + 1/v. Not 1/f = 1/U - 1/v
You dont know the difference between lens and mirror formula
The video is very helpful though there was some sort of a language barrier
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@@kamaldheeriya thanks 🙏🤗😊
Isn't 1/f=1/v-1/u the actual formula ? Kindly help cause I'm pretty confused.
Yes it is the actual formula as per your text book is concerned
Very good
Dd
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Can the object be like this
Object can be any figure but this will confuse u, so go as per text book use arrow
Good morning sir😊
Good morning
Thanks sir g
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Tnx sir it is a good thing
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unfortunately i don't speak italian... :/
SIRr,is there any reason for the farmulla of the lense that we can write in the form of reciprocal(1/F=1/V-1/U)???
WHY WE CAN NOT Write in the form of F=V-U??????
Sir there is a mistake you didn't b'f
Yes plz correct it
Thank u sir
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Thanks sir 🙏🙏
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OF = f not F
Because focal length is denominated by small f
Thanx for helping😊
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Sir very nice! Sir after getting an equation in u, v , f and v-f, we can apply Invertendo and and then Componendo, isn't it Sir?
Yes
But this is much simpler
Thankuuuuu
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Pahla wala if magnification se likh de to chalega 12th me??
Chalega
V q -ve. Ny hwa ..sir please tell me.. qki image to downward me ban rha hai..
V is image distance not image height so it will be positive beacuse it is on right side of optic centre
@@kamaldheeriya Oo..
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thanks for the information
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Note nice like a lance formula
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Good explain sir ji😊
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Wow! Nice teaching sir
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Sir 5:51 pe ratio galt liya aapne...BF nhi aaye ga BF' aaye ga
Usse correct kr lo aap
Sir what is the meaning of corollary
Like theorem which is used for proving something
Thank you.
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sir app ek point galti likhe hai
(BF= V-F) is wrong
(B'F= V-F) is Right.
Yes u have said right please consider that as B'f
Thanks sir
Nice video. I learned a lot
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But sir this is a lens formula and we can't derived it by any other method ???????????
Sir I'm confuse pls remove my confusion 🤔🤔🤔🤔🤔🤔🤔 pls SIR
You can derive it by other method also and thia is a lens formula
@@kamaldheeriya
Thanks sir
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Confusion can be cleared but not removed
@@mariyanaik5992
Then clear my confusion
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At 5.35 I can't understand please clarify that sir
Thank you for derivation of lens formula
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Thanks sir....
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distance OF must be written as f and not by F as, F is focus
Actually marker pointer is not that sharp, so we have to write in bold letter such that it will be clear for u all, and we are giving you derivation not the notation of that particular term
thank you soo much sir ..its very helpful
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its the easiest way to solve but can u say me about collary also
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Thanks
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Bf=v-F is wrong it is B'f=v-f
Ya but corrected in the next step
Sir B'f=v-f
Yes
Thanks
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This makes it so much easier
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Thank you, this will help for next year, as I will be in year 11
Sir B'F hoga v-f
Yes
Nice
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Nice
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Aaj mai aapka 9 video dekha sab mast hai
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Sir hindi medium me padhai n please sir
Ok
Thanks
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Thanks
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BF point me mistake hai
Yes BF'
Thank you 🙏🙏
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Thank-you sir
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U ko negative kyu liye
Sign convention he hisab se
Thnkewwww so much sir
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This isn't lens maker formula..... Its mirror formula wth
No this is lens formula, lens maker formula is other than this check title plz.
Sorry, my bad. I was searching for Lens maker formula and this popped up. So I was quite shocked and made the wrong assumption. Sorry mate... Keep up the good work
I am also going to upload lens maker formula for u tommorow plz have a look.
Thanks you sir u r best
+Shashibhushan Maurya your welcome
You have written BF = v-f but it is B'F=v-f
Yes u go through concept
Thanks sir
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Thank you for help
+Hani Sultan keep in touch
Very nice explanation sir thank you so much
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this is not true sir. :[[[[[[1/f=1/v+1/u]]]]]..i think must be like that ....
Oh man that is mirror formula u are telling about amd this is lens formula, dont confuse your self, this is lens formula.
but my book says like that.
saw you mean is for both convex and concave
Yes it is for both convex and concave lens, if you do this derivation using concave lens you will get the same result, check yojr book you are talking abhout mirror formula not lens formula and this is derivation of lens formula.
Thanks
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thanks sir
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Nice
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Nice sie
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Wonderful sir👏👏👌👍
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Thanks sir 😊
Sir it's a very great in which way you explain
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SIRr,is there any reason for the farmulla of the lense that we can write in the form of reciprocal(1/F=1/V-1/U)???
WHY WE CAN NOT Write in the form of F=V-U??????
Good morning sir
Good morning beta
Sir give us all physics math by calculus method
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Thank-you sir
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nice explanation sir
hmare School vale v apki vdo ko recommend kara he....... 😊😊
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Thanks for the complement keep sharing and supporting us
Tq sir
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Yes ofcourse u can ask doubts
Are Bhai galat study karva raha hai
Kya galat hai
Lens formula me BF ki jagah B des F aayega
Look... mistake Kisi se bhi ho Sakta hai
It doesn't mean that he is teaching wrong
One more thing ..
Mistakes jaldi deekh Jata hai
Hai n friend...
Agar mistake pata hai to move forward