1.

Three torches A , B , C are switched on one by one . The light from which of the torch will not a shadow of the ball on the screen​

Answer» BALL is in front of A then from the TORCHES B,C the image will not form.if the ball is in front of B then from the torches A,C the image will not form.if the ball is in front of C then from the torches A,B the image will not form.


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