What is the refractive index of a medium when the light strikes the medium after traveling through air at an angle of 23.3° and the refracted angle is 14.6°?
1.33
1.36
1.44
1.57
1.91

The refractive index of the medium is 1.57

Explanation:

It is given that,

Angle at which the light strikes the medium after travelling through air, i = 23.3°

Angle at which the light ray is refracted, r = 14.6°

Snell's law gives the relation between the angle of incidence, angle of refraction and refractive index. Mathematically, it is given by ;

n = 1.569

or

n = 1.57

So, the refractive index of the medium is 1.57. Hence, this is the required solution.

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.

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