Answer :

A pinhole camera, also known as camera obscura, or "dark chamber", is a simple optical imaging device in the shape of a closed box or chamber. In one of its sides is a small hole which, via the rectilinear propagation of light, creates an image of the outside space on the opposite side of the box.
Annabeth
a pinhole camera is a simple camera without any lens and with a single small aperture- effective a light-proof box with a small hole in one side. Light from a scene passes through this single point and projects an inverted image on the opposite side of the box. the human eye in bright light acts similarly, as do cameras using using small apertures....

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