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Question

The second law of refraction states that :
  1. sin2isin2r=μ
  2. sinisinr=μ
  3. sinisinr=μ
  4. none of these are true

A
sin2isin2r=μ
B
none of these are true
C
sinisinr=μ
D
sinisinr=μ
Solution
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According to second Law of refraction, When incident ray, coming from one medium to the boundary of another medium, gets refracted, the ratio of the sine of angle of incidence i to the sine of angle of refraction r is always constant for a given wavelength of light.

This constant is the refractive index of second medium relative to the first medium.

This can be written as:

sin isin r= constant(μ)

This is also known as Snell's law.


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