Question

A ray of light in incident on a glass slab at an angle of 45 degree. find the angle of refraction if the refractive index of Glass is 1.6

Answer 1

Answer:

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Explanation:

Answer 2

The angle of refraction if the refractive index of glass is 1.6 is 26 degree.

Explanation:

We know that,

        n = $\frac{Sin (i)}{Sin (r)}$

where,   n = refractive index of glass

             (i) = angle of incidence

             (r) = angle of refraction

Putting the given values into the above formula as follows.

       n = $\frac{Sin (i)}{Sin (r)}$

      1.6 = $\frac{Sin (45)}{Sin (r)}$

     Sin (r) = $\sqrt{\frac{1}{2}} \times \frac{1}{1.6}$

     Sin (r) = 0.43

or,     r = 26 degree

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