Give important of :1) - persistance of vision. Any 4 point.

1.	Give important of :1) - persistance of vision. Any 4 point.
Answer» The impression of an object seen by the eye persists on the retina for 1 /16 th of a second, even after the object is removed. If another object is seen before this time, the impressions of the two merge to give us the sensation of continuity. This property of eye is called persistence of vision.\xa0Motion pictures are shown at the speed of 24 or more pictures per second so that they merge together as a moving picture.

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