Light- Grade 8

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

Light travels in ___________ lines

• wavy
• bent
• straight
• backwards

Law of reflection state that - The angle of incidence is .................. to the angle of reflection.

• equal
• double
• half

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.

which of these means the same as 'plane mirror'?

• curved mirror

• magnifying mirror

• bathroom mirror

• Flat mirror

The angle of incidence is measured from the __________ to the normal line.

• reflecting surface

• incident ray

• reflected ray

• none of the above

What happens to light when it hits a rough surface?

• It reflects uniformly.

• It scatters in different directions.

• It passes through the surface.

• It disappears.

Which of the following is an example of a concave mirror?

• Bathroom mirror

• Makeup mirror

• Flat mirror

• Rearview mirror

The normal line is ____ degrees away from the surface.