Question 1

If a beam of light hits a smooth mirror at an angle of incidence of

30^\circ

relative to the normal, what will the angle of reflection be according to the Law of Reflection?

Accepted Answer

Answer

Answer

Answer

Question 2

Which of the following objects is considered luminous and can be seen because it creates its own light?

Accepted Answer

A glowing light bulb

Answer

A wooden table

Answer

The Moon

Answer

A shiny metal spoon

Question 3

An object that does not allow any light to pass through it, creating a dark shadow behind it, is described as being:

Accepted Answer

Opaque

Answer

Luminous

Answer

Transparent

Answer

Translucent

Question 4

In the study of reflection, what is the 'normal'?

Accepted Answer

An imaginary line perpendicular to the surface at the point where light hits.

Answer

The ray of light that bounces off the mirror.

Answer

A line that is parallel to the surface of the mirror.

Answer

The ray of light that hits the mirror surface.

Question 5

Which of the following statements correctly describes a non-luminous, opaque object like a textbook?

Accepted Answer

It does not produce its own light and does not let any light pass through it.

Answer

It produces its own light but is impossible to see through.

Answer

It does not produce its own light but lets most light pass through it.

Answer

It produces its own light and lets light pass through it easily.

Question 6

If the angle between the incident ray and the normal is

30^\circ

, what is the angle between the reflected ray and the normal?

Accepted Answer

Answer

Answer

Answer

Question 7

What is the name of the angle measured between the reflected ray of light and the normal line?

Accepted Answer

Angle of reflection

Answer

Angle of incidence

Answer

Normal angle

Answer

Opaque angle