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
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 !
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
17
Answer:
option (c)
Explanation:
30°
I hope it help you....
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