Physics
In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is
Decreased by 2%
Decreased by 4%
Increased by 2%
Increased by 4%
Decreased by 4%
In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is decreased by 4%.
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