Question

Wave nature of light cannot explain photoelectric effect, because in photo electric effect, it is seen that,

• A. maximum kinetic energy of ejected electrons is independent of intensity of radiation.
• B. there is no time lag between incidence of radiation and emission of electrons.
• C. for the frequency of light below a certain value, the photoelectric effect does not take place irrespective of intensity.
• D. All of these.

Answer 1

The correct option is D All of these.

Wave nature can not explain particle nature of light whereas the photo electric effect says photons(energy packages of light) incident on surfaces collides with electrons and hence providing them energy to jump out of the metal surface. Here, intensity of light does not have any influence.

Hence, $\left(D\right)$ is the correct answer.

$$\begin{array}{c}\text{Why this Question ?}\\ \text{Photoelectric effect is explained by particle nature of light and so wave nature cannot explain it.}\end{array}$$