Question
Describe the working principle of a pinhole camera.
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Answer
A pinhole camera operates by allowing light rays from an object to pass through a tiny hole (the pinhole). These light rays then project an inverted image onto a screen inside the camera. This happens because light travels in straight lines; the pinhole ensures that only one ray of light from each point on the object passes through, creating a focused (though often dim) image on the screen.
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