Q)

Asked by araima2001 | 12th Dec, 2015, 08:08: AM

Expert Answer:

According to Snell's law, the ratio of the sine of angle of incidence to the sine of angle of refraction is a constant for the two pair of the media in contact. It means that for two media in contact,
begin mathsize 14px style fraction numerator sin space straight i over denominator sin space straight r end fraction equals straight mu end style
where i is the angle of incidence, r is the angle of refraction and μ is the refractive index.
Therefore,

begin mathsize 14px style fraction numerator sin space straight i over denominator sin space straight r end fraction equals to the power of 1 straight n subscript 2 or fraction numerator sin space straight i over denominator sin space straight r end fraction equals straight n subscript 2 over straight n subscript 1 or straight n subscript 1 space sin space straight i space equals space straight n subscript 2 space sin space straight r end style
The correct option is (D).

Answered by Faiza Lambe | 12th Dec, 2015, 12:42: PM

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