Question

Which thing can create circular and rectangular shadow?

Answer 1

Answer:

Shadows give us some information about shapes of objects. Sometimes, shodows can also mislead us about the shape of an object. Yes, we can 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.

For example:

A cylinder gives a circular shadow if held in one way and a rectangular shadow if held in another way when held in the path of light, the shape of the shadow obtained is a circle. If the curved surface of the cylinder is placed perpendicular to the path of the light, the shape of the shadow obtained is a rectangle.

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