Question

Which of the following graphs correctly represents the variation of photo current with respect to energy of incident radiation?

• A.
• B.
• C.
• D.

Answer 1

The correct option is B

Photo current depends on intensity of incident radiation and not on the energy.
If energy is increased it has no effect on the no. of electrons emitted rather it effects the maximum kinetic energy of the emitted electrons.
Hence, $\left(B\right)$ is the correction answer.

$\begin{array}{c}\text{Why this question?}\\ \text{This question combines independance of photo current with respect to intensity and graphical representation of it.}\end{array}$