Question

Light is incident on a glass surface at polarising angle of 57.5 degree. Then the angle between the incident ray and the refractd ray is?

Answer 1

The angle b/w the incident ray and refracted ray is 205°.

Answer 2

Answer:

The angle between the incident ray and the refracted ray is 205°.

Explanation:

Given that,

Light is incident on a glass surface at polarizing angle of 57.5°.

∠i=57.5°

We know that,

From law of reflection,

Angle of incidence is always equal to angle of reflection.

So, ∠i=∠r =57.5°

For the complete polarization, the sum of angle of reflection and refraction is 90°.

Therefore,

∠r+∠R=90°

∠R=90-57.5°

∠R=32.5°

We know that,

The angle between the incident ray and the refracted ray will be

∠i+∠r+90°=∠X

Here, X = The angle between the incident ray and the refracted ray

∠57.5°+∠57.5+90°=∠205°

Hence, The angle between the incident ray and the refracted ray is 205°.