SSC MTS EXAM

SSC

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
THE PROPERTY OF PERSISTENCE OF VISION IS USED IN
A
SHORT SIGHTEDNESS
B
LONG SIGHTEDNESS
C
CINEMATOGRAPHY
D
COLOUR VISION
Explanation: 

Detailed explanation-1: -Persistence of vision is the eye’s ability to keep seeing an image of an object for a fraction of a second after the object has disappeared from view. The principle of persistence of vision is used in making motion pictures and animated cartoons.

Detailed explanation-2: -Even after the object is removed, the impression of an object seen by the eye remains on the retina for 1/16th of a second. If we see another object before this time, the impressions of the two merge to give us a sense of continuity. This eye property is known as persistence of vision.

Detailed explanation-3: -The pictures in the form of a long film are projected on the screen at a rate of about 24 pictures per second. Under these conditions, the image of one picture persists on the retina of the eye till the image of the next picture falls on the screen, and so on.

Detailed explanation-4: -Cinematography works on the principle of persistence of vision.

There is 1 question to complete.