The image on the retina remains for :

20 s

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10 s

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\frac{1}{10} s

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\frac{1}{16} s

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Solution

The correct option is D $\frac{1}{16} s$
An image stays on the retina for about 1/16 of a second. This feature is called persistence of vision. Due to this, when many still images are shown in a sequence; they give the illusion of moving images. Movies and animation are made by exploiting this property of the human eye.

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