The eye of a person exhibits a phenomenon X due to which it can see the image of an object for a short duration of Y even after the object has disappeared from his view. It is due to the phenomenon X that we are able to see moving Z on a television screen. What are X, Y and Z ?

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Solution

X : Persistence of vision
Y : $\frac{1}{16}$ second
Z : Pictures

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The eye of a person exhibits a phenomenon X due to which it can see the image of an object for a short duration of Y even after the object has disappeared from his view. It is due to the phenomenon X that we are able to see moving Z on a television screen. What are X, Y and Z ?

X : Persistence of vision Y : 116 second Z : Pictures

X : Persistence of vision
Y : $\frac{1}{16}$ second
Z : Pictures