Question

a) The refractive index of glass with respect to air is given by the expression
I
Sini
gu
Sinr
(i)
If in the above expression angle r = 90°, what is the corresponding
angle of 'i' called?
What is the physical significance , if the angle of incidence
increases than the angle of incidence in (1) ?
[2]​

Answer 1

Answer:

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