phiysics class 10 section a and c

What is reflection?

• Reflection is the bouncing of light off the surface that it strikes on.

• Reflection is the absorbing of light off the surface that it strikes on.

• Reflection is the bending of light off the surface that it strikes on.

• Reflection is the scattering of light off the surface that it strikes on.

The ray of light that strikes a reflecting surface is called ________.

• incident ray
• reflected ray
• normal ray
• none of the above

The imaginary line perpendicular to a reflecting surface is called _____.

• crooked line
• parallel line
• angular line
• normal line

Mirror and diamond are considered

• light source

• not as light source

• primary source of light

• light generator

Light travels in a straight line

• true

• false

Light travels in ........................, light ................... be bent.

• Straight line, cannot

• Straight line, can

• circular motion, can

Why does the straw appear to be bent?

• light is reflected

• light is absorbed

• light is turned

• light is refracted

A __ object is something that gives off light.

• light

• transparent

• dark

• luminous

In the given figure , which angle represents angle of incidence ?

• a

• b

• c

• d

........... – the angle between the normal and the incident ray.

• Angle of incidence
• Angle of reflection
• Angle of coincidence
• Angle of direction