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-

457

You visited us 457 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VII

Physics

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}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

60^{\circ}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

90^{\circ}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

180^{\circ}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

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.

Suggest Corrections

Similar questions

Q. A light ray is incident on a flat surface, making an angle of

20^{\circ}

with the surface. Find (i) the angle between the incident ray and the reflected ray (ii) the angle between the reflected ray and the surface?

Q. A light ray is incident on a flat surface, making an angle of

20^{\circ}

with the surface. What is the angle of incidence and angle of reflection respectively?

Q. An incident ray makes an angle of

30^{o}

with the surface of plane mirror. What is the angle between incident ray and reflected ray?

A light ray is incident on a smooth surface at an angle $45^{\circ}$ with the normal to the surface. Find the angle made by the reflected ray with the incident ray.
[2 MARKS]

Q. A monochromatic ray of light is incident on the surface of a glass slab of thickness

8 c m

, making and angle

30^{\circ}

with the surface. The lateral displacement of the ray of light will be

(μ_{g} = \sqrt{3})

Join BYJU'S Learning Program

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.