When the surface of a metal is exposed to blue light,electrons are emitted.If the intensity of the blue light is increased,which of the following will also increase?
A)the number of electrons ejected per second
B)the maximum kinetic energy of the ejected electrons
C)the time lag between the onset of the absorption of light and the ejection of electrons
D)All of the above
E)Two of the above

Question

Quizplus · Accepted Answer

Increasing the intensity of the blue light increases the number of photons hitting the metal surface per second, which increases the number of electrons ejected per second. The maximum kinetic energy of the ejected electrons depends on the frequency of the light, not its intensity.

When the Surface of a Metal Is Exposed to Blue