What is the effect of doubling the photon flux of light on whether electrons will be emitted from a metal?

A. Light with greater photon flux is more likely to cause electrons to be emitted than the weaker light.
B. Light with greater photon flux will cause electrons to be emitted with faster velocities than the weaker light.
C. Light with less photon flux must shine for a longer time to cause electrons to be emitted.
D. The photon flux has no effect on whether electrons are emitted or not.

Thank you!

A. Light with greater photon flux is more likely to cause electrons to be emitted than the weaker light.

Explanation:

Doubling the intensity of photo flux will double the number of electrons ejected from the metal surface.However, the kinetic energy distribution will remain the same.The number of photo electrons emitted per second is directly proportional to photo current produced and to the intensity of photon flux of light.

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