Answer to Question #50751 in Atomic and Nuclear Physics for palashkumarmura
a monochromatic point source of light is placed at a distance d from a metal surface.plate electron are ejected at a rate n per sec with maximum kinetic energy E.if the source brought nearer to distance d/2, the rate and maximum kinetic energy per photo electric become...
The maximum kinetic energy will be the same, E, because energy of photons does not depend on intensity, which increase in 4 times. The rate will 4 times higher, 4n per sec, as we will have 4 times more photons per square cm.
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