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Question

What are the factors that affect the size of a shadow?

A
The color of the object.
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B
The distance of the source of light from the object.
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C
The angle at which the light rays fall on the object.
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D
The size of the opaque object.
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Solution

The correct options are
B The distance of the source of light from the object.
C The angle at which the light rays fall on the object.
D The size of the opaque object.

The size of the shadow depends on the distance of the source of light and on the angle at which the light rays fall on the object.

If the source of light is closer to the object, a larger shadow is formed than when the source of light is far from the object.



It can be observed from the above figure that as the angle of light incident on the object changed the length of the shadow changed.


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