The shadow of a ball is formed on a wall by placing the ball in front of a fixed torch as shown in Fig. 11.18 Class 7
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The shadow of a ball is formed on a wall by placing the ball in front of a fixed torch as shown in Fig. 11.18 Class 7
The shadow of a ball is formed on a wall by placing the ball in front of a fixed torch as shown in Fig. 11.18. In scenario (i) the ball is closer to the torch, while in scenario (ii) the ball is closer to the wall. Choose the most accurate representation of the shadows formed in both scenarios from the options provided (a and b). Class 7
Answer:
Scenario (i): When the ball is closer to the torch the shadow will be larger because the light is spreading more and the ball blocks more light. [Option (b)]
Scenario (ii): When the ball is closer to the wall the shadow will be smaller because the ball is farther from the torch, so the ball blocks less light. (option a)