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Himanshu Pandey Asked a Question

May 14, 2020 12:53 am

30 pts

IIT JAM
Physics (PH)

Optics a rectangular glass slab abcd...

3 Answer(s)

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Himanshu Pandey
this one
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Himanshu Pandey
so think option A is misprinted
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Himanshu Pandey
And Abhishek sir i think there need to be some correction at point E when you apply snells law it should be sin alpha= u2/u1 sinr
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Himanshu Pandey
Somnath sir ur answer is not matching although everything is correct!!!
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Somnath
By mistake i have considered the refractive index of glass u2 and that of water as u1.Thats why ans is not matching.u1,and u2 have to be interchanged in every place.But procedure o...
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Ruby negi
r2 is critical angle that's why ray of light is incident back into the same medium..
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Ruby negi
option a is correct...hope you will get it.
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Abhishek singh Best Answer
Before solving the question, you should know some concepts of Total internal reflection (TIR). So I am attaching The whole discussion of TIR, followed by the solution of this quest...
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Somnath
See the attached files for details solution and concept.
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Chandra dhawan
see attached file
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Chandra dhawan
sorry , I submitted my ans in n is refractive index.
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