(6) On which principle does pinhole camera work?
A. Opaque objects cast shadows.
B. Smooth shiny surfaces reflect the light falling on them.
C. Light travels in a straight line.
D. Shadows form an images on screen.
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Answer:
rectilinear theory of light
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Answer:
A pinhole camera is based on the principle of rectilinear propagation of light. According to this principle, light always travels in a straight line
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