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Question

Identify the value of persistence of vision.
  1. 1/10th of a second
  2. 1/16th of a second
  3. 1/20th of a second
  4. 1/12th of a second

A
1/10th of a second
B
1/12th of a second
C
1/16th of a second
D
1/20th of a second
Solution
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The image formed on the retina of the eye does not fade away instantaneously but its impression remains on the retina for about 1/16th of a second, even after the removal of an object. This is called as persistence of vision. This property is used in cinematography.
Thus, the correct answer is option C.

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