Question

Fill in the blanks using the correct word given in the bracket:
1. Light is a form of ............................ . (energy/electricity)
2. All bodies which emit light energy by themselves are called ............................ bodies. (luminous/opaque)
3. Light travels in a ............................ line. (straight/curved)
4. A glowing electric bulb is an example of ............................ source of light. (natural/artificial)
5. Any polished surface from which regular reflection takes place is called a ............................ . (mirror/obstacle)
6. Reflection from a mirror gives clear ............................ . (image/shadow)
7. The shadow of a coloured object is ............................ . (coloured/black)
8. The image formed by a mirror is due to ............................ of light. (reflection/ propagation)

Answer 1

1. Light is a form of energy. (energy/electricity)
2. All bodies which emit light energy by themselves are called luminous bodies. (luminous/opaque)
3. Light travels in a straight line. (straight/curved)
4. A glowing electric bulb is an example of artificial source of light. (natural/artificial)
5. Any polished surface from which regular reflection takes place is called a mirror. (mirror/obstacle)
6. Reflection from a mirror gives clear image. (image/shadow)
7. The shadow of a coloured object is black. (coloured/black)
8. The image formed by a mirror is due to reflection of light. (reflection/ propagation)