Which of the following optical phenomenon is used in cinematography or movie projectors?

Accommodation

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Persistence of vision

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Interference

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Short-sightedness

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Solution

The correct option is B
Persistence of vision

Persistence of vision is the commonly used term to describe the optical illusion whereby multiple discrete images blend into a single image in the human mind and believed to be the explanation for motion perception in cinema.

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Which of the following phenomenon is used in optical fibre?

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