Three torches A, B, and C shown in the figure are switched on one by one.


The light from which of the torches will not form a shadow of the ball on the screen."

Light from torch A and B will form the shadow of the ball on the screen as light travels in on a straight path. But light from the torch C can not form a shadow of the ball on the screen as light from torch C is parallel to the screen.

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Updated on: 10-Oct-2022

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