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Shadow

Draw a ray di...

Question

Draw a ray diagram to show the formation of the shadow of an opaque object by a point source of light. How is the size of shadow affected if the screen is moved away from the object?

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Solution

We obtain a shadow on the screen when an opaque object is placed between a point sources of light and screen.

On moving the screen away from object, the size of the shadow increases.

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Q. The size of a shadow will ______ if an object is moved away from a light source keeping the positions of the source and the screen fixed.

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