A student had a ball, a screen, and a torch in a working condition. He – InterviewSolution

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1.	A student had a ball, a screen, and a torch in a working condition. He tried to form a shadow of the ball on the screen by placing them at different positions. Sometimes the shadow was not obtained. Explain.
Answer» A student had a ball, a screen, and a torch in a working condition. He tried to form a shadow of the ball on the screen by placing them at different positions. Sometimes the shadow was not obtained. Explain.

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