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 things will also increase?
A) the time lag between the onset of the absorption of light and the ejection of electrons
B) the work function of the metal
C) the number of electrons ejected per second
D) the maximum kinetic energy of the ejected electrons
E) all 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 in turn increases the number of electrons ejected per second. The work function, time lag, and maximum kinetic energy of the ejected electrons are not affected by the intensity of the light.

When the Surface of a Metal Is Exposed to Blue