Which of the following factor/s determine the type of shadow formed by a source of light?

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the size of the opaque object

the distance of the source of light

the angle at which the light rays fall on the object

All of the above

answer is D.

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Detailed Solution

Two factors that determine the type of shadow formed by the source of light are the distance of
the source of light, the angle at which the light rays fall on the object, the size of the opaque
object.
The distance from the light source and the angle at which the light rays strike the object both
affect the size of the shadow. A larger shadow is cast on an object when the light source is
nearer to it, and vice versa.
The size of the shadow is also influenced by the size of the opaque object. A small object will
cast a smaller shadow at a given distance if the light source is fixed at a point and a bigger
an object will cast a larger shadow.

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