| Ashish shone a torch at a ball. The shadow of the ball is projected onto a screen as shown. |
| What could Ashish do to get a smaller shadow of the ball on the screen? |
|
| 1. Move the ball closer to the screen. |
| 2. Move the torch further away from the ball. |
| 3. Move the screen further away from the ball. |
A) 1 only
B) 3 only
C) 1 and 2 only
D) 2 and 3 only
Correct Answer: C
Solution :
By increasing the distance between light source and object the size of the shadow can be reduced. The distance between them can be increased either by moving ball closer to the screen or by moving torch further away from the ball.
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