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    Question

    Persistance of vision is the principle behind –

    A Camera Correct Answer Incorrect Answer
    B Spectroscope Correct Answer Incorrect Answer
    C Cinema Correct Answer Incorrect Answer
    D Periscope Correct Answer Incorrect Answer

    Solution

    Persistence of vision is the phenomenon of the eye by which an afterimage is thought to persist for approximately one twenty-fifth of a second \ on the retina. Persistence of vision is still the accepted term for this phenomenon in the realm of cinema history and theory.

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