question_answer 16)

Can you think of creating a shape that would give a circular shadow, if held in one way and a rectangular shadow, if held in another way?

Answer:

Yes, there are many things that could give a circular shadow, if held in one way and a rectangular shadow, if held in another way. e.g. a cylindrical object, a pencil, a candle, etc. (i) Getting a circular shadow of a candle (which is cylindrical in shape), when it is laid down horizontally. (ii) Getting a rectangular shadow of a candle, while in standing or in vertical position.