Which of the following statements is TRUE of photoelectric effect?
- it cannot occur in liquids
- the energy of the emitted electrons is independent of the work function of the surface
-
the energy of the emitted electron depends on the wavelength of the incident light
- the greater the intensity of the incuident light, the greater the incident of the emitted electron
The correct answer is: C
Explanation
The photoelectric effect is the emission of electrons when electromagnetic radiation, such as light, hits a material.
The frequency of the incident light on the substance determines the kinetic energy of the emitted electrons.
The number of electrons emitted and the intensity of light incident are proportional to each other.