Regular and Irregular Reflection

Q. Which part of a plane mirror is responsible for reflection?

1. Glass
2. Opaque paint at the back
3. Both glass and silver polish
4. Silver polish

Q. Which type of reflection will take place when a beam of light strikes:
1. Steel utensil
2. The back of a spoon

Q. Bouncing back of light from a rough surface is an example of ___.

1. absorption
2. single reflection
3. irregular reflection
4. regular reflection

Q. HOW WE ARE ABLE GO SEE THE LIGHT COMMING FROM OUR MOBILE PHONES? ALTHOUGH THEY DON'T HAVE ANY SPACE TO COME OUT OF IT AND BOUNCE.

Q. What kind of object is a plane mirror?

1. Opaque
2. Transparent
3. Translucent
4. Transparent for some light rays and opaque for others

Q. The speed of a light ray _____, when it passes from air to glass.

1. becomes zero
2. remains the same
3. increases
4. decreases

Q. In which reflection does the incident light get scattered in many directions?

1. Disturbed
2. Internal
3. Regular
4. Diffused

Q. Draw suitable diagram to illustrate how a beam of light incident parallel to the principal axis is reflected by a convex mirror.

Q. Bouncing back of light from a rough surface is an example of ___.

1. regular reflection
2. irregular reflection
3. absorption
4. single reflection