Question

B. Write one word for each of the following.
1. A substance/material that allows light to pass through it.
2. The substance that allows only a part of light to pass through it.
3. It fills the space between the opaque object and the screen.
4. It travels in a straight line with a speed of 3 x 10 m/s.
5. The ray of light that returns after falling on a mirror.​

Answer 1

1. transparent
2. translucent
3. shadow
4. light
5. reflected ray of light