Physics, asked by baby40, 1 year ago

The refractive index of glass with respect to air is 2. Then the critical angle of glass–air interface is..................

a) 0°. b) 45°. c) 30°. d) 60°

Answers

Answered by HappiestWriter012
306
Hey there !

We know that

Relative refractive index = 2

so According to snell's law sini / sinr =2.

and sini/sinr = 1/ sinc

2 = 1/ sin c

sinc = 1/2

sinc = sin30

c=30°

Critical angle = 30°

hope helped !
Answered by varshitharao965
17

Answer:

option (c)

Explanation:

30°

I hope it help you....

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