Question

What are the required apparatus for making pin-hole camera ? On what

principle does it work​

Answer 1

Answer:

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Explanation:

Pinhole cameras rely on the fact that light travels in straight lines – a principle called the rectilinear theory of light. This makes the image appear upside down in the camera

When the shutter is opened, light will shine through to imprint a picture on photographic paper or film placed at the camera's back. Pinhole cameras rely on light traveling in straight lines – a principle called the rectilinear light theory. That makes the camera's picture appear upside-down