Geometric Derivation of the Thin Lens Equation for Optics

Geometric Derivation of the Thin Lens Equation for Optics | Doc Physics

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Doc Schuster

11 жыл бұрын

Hint - it's exactly the same as the mirror equation. Yay!

Пікірлер: 24

@192913192913 10 жыл бұрын

This is a really entertaining video. GOOD WORK, DOC!

@DocSchuster 10 жыл бұрын

Thanks!

@abelardocruz7635 5 жыл бұрын

Thank you... I'm planning to this to my student for inductive lesson... They will derive it the equation during our class discussion. =)

@therealsumitshah 9 жыл бұрын

you rock!@doc schuster

@ntholeraymond495 9 жыл бұрын

thanks this really helped me a lot...

@aaqibjavid2529 9 жыл бұрын

Hey doc while deriving optical equations like mirror formula lens formula, magnification,etc we use sign conventions ....why do we need to use sign conventions again in these formulae while solving numericals????

@DocSchuster 9 жыл бұрын

Aaqib Javid Conventions allow us to speak to one another, like a shared language. Try a problem without conventions - you will probably get the wrong answer!

@OfficialMarzil 10 жыл бұрын

Isn't d(o) [Distance of object] suppose to be negative? because distances measured from O to the left is negative.

@nagarajanvaidya9266 10 жыл бұрын

yes, its always -ve

@DocSchuster 10 жыл бұрын

There are multiple self-consistent conventions. I may be using a different one than your class.

@MrSuvidh 10 жыл бұрын

Doc Schuster so what sign convention did you use sir? cause even acc. to the sign convention i know Do should be -ve

@shimishimikokobop315 2 жыл бұрын

Hello! How to prove that - Di = Do?

@OfficialMarzil 10 жыл бұрын

Also, isn't the lens formula 1/di - 1/do=1/f?

@DocSchuster 10 жыл бұрын

Did you notice that both your conventions combine to create my convention? Cool!

@OfficialMarzil 10 жыл бұрын

Thank you for the quick replies Schuster :) These videos got me full marks in my Physics exam xD

@DocSchuster 10 жыл бұрын

You rock!

@199alexman 9 жыл бұрын

z3em ~ thanks for the video but can you show me what happens when the object passes the focal point i know we are going to have image on the object size but how to generate the formula i fucken dont know` i would be happy if u help mi colo ~

@DocSchuster 9 жыл бұрын

199alexman I have several videos on ray tracing that may help you understand. Good luck!

@199alexman 9 жыл бұрын

thanks for replying back... i looked thro them the thing is i know how to get the image i am just having hard time figuring the derivation of the geometric formulas ~

@tullo5564 8 жыл бұрын

Dude! It's a lens equation,not a thin lens equation which is different

@mdtoufiquzzaman9118 7 жыл бұрын

Pakhtoon KPK Ah the derived equation is actually a thin lens equation

@falnica 8 жыл бұрын

You are better than Griffiths, write a book and it will be my Bible

@DocSchuster 8 жыл бұрын

+Fernando Franco Félix Whoa. Did you just diss my man, Griffiths?!? Which of his books have you read? He's quite a bit better than me!

@falnica 8 жыл бұрын

You noticed me!. I have read Introduction to Electrodynamics and to Quantum Mechanics, and yes, I do think you are better than Griffiths, because while he does everything right, you do it better. Also I love you energy and enthusiasm, I want to be like you. I had been reading all day Hecht's book, trying to understand this topic but it makes no sense the way he does it, but then I thought: "I bet my man Doc Schuster has a video on that", and you totally did, and it was so simple. Thanks