A light ray is incident on a flat surface- making an angle of 30- with the surface- What is the angle between the surface and the normal-

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Scattering of Light

A light ray i...

Question

A light ray is incident on a flat surface, making an angle of $30^{\circ}$ with the surface. What is the angle between the surface and the normal?

30^{\circ}

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60^{\circ}

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90^{\circ}

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180^{\circ}

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Solution

The correct option is C $90^{\circ}$
The angle between the surface and the normal is always 90 degrees irrespective of angle of incidence. The given information of 30 degrees is useless to solve this question.

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A light ray is incident on a flat surface, making an angle of 30∘ with the surface. What is the angle between the surface and the normal?

The correct option is C 90∘The angle between the surface and the normal is always 90 degrees irrespective of angle of incidence. The given information of 30 degrees is useless to solve this question.

A light ray is incident on a flat surface, making an angle of $30^{\circ}$ with the surface. What is the angle between the surface and the normal?

The correct option is C $90^{\circ}$
The angle between the surface and the normal is always 90 degrees irrespective of angle of incidence. The given information of 30 degrees is useless to solve this question.