Question

How should the maximum kinetic energy of photoelectrons change with increasing intensity, according to wave theory?

Options

• It should take hours or more

• It should exist only at a threshold frequency

• It should increase with increasing intensity

• It should be a continuous distribution of energy

Answer 1

Wave theory predicts that increasing intensity increases the energy absorbed by each electron. It therefore predicts an increase in the maximum kinetic energy of photoelectrons, contrary to observation.