On what principle does a pinhole camera work?

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Reflection of light

Refraction of light

Rectilinear of light

None of these

answer is C.

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Detailed Solution

This is because when the shutter of a camera is opened, the light will shine to imprint a picture on photographic film where it is placed on a back of camera. Therefore pinhole camera rely on light travelling in straight lines on this principle is called rectilinear of light.

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