Persistence of vision is the characteristic of human eye to capture image on the retina and this image is retained for 1/16th of a second on the retina. If the time difference between the two pictures is less than one sixteenth of a second then our eyes will not be able to distinguish the two different pictures rather it will be seen as if the picture is moving.
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(i) How many mirrors should he use to see the objects? (ii) Indicate the positions of the mirrors in the figure. (iii) What must be the angle with respect to the incident light at which he should place the mirrors? (iv) Indicate the direction of rays in the figure. (v) If any of the mirrors is removed, will he be able to see the objects?
