The photoelectric effect shows that there is a minimum frequency (energy)required todislodge an electron from an atom. This effect demonstrates
A)the speed of light is a constant.
B)the wave nature of light.
C)the particle nature of light.
D)the inverse relationship between wavelength and frequency.
E)when photons kick an electron out of a metal atom, the electrons move fastest when thewavelength of light is longest.

Question

Quizplus · Accepted Answer

The photoelectric effect demonstrates the particle nature of light, as it shows that light behaves as discrete packets of energy (photons) that can knock electrons out of atoms if they have a high enough frequency (energy). The fact that there is a minimum frequency required for electron ejection, rather than a minimum intensity of light, supports this idea of discrete energy packets. The photoelectric effect shows that light can act as a particle (photon) with energy requirements needed to dislodge an electron from an atom. This supports the particle nature of light. The other answer choices are not directly related to the photoelectric effect.

The Photoelectric Effect Shows That There Is a Minimum Frequency