Question

Maximum kinetic energy of a photoelectric varies with the frequency $\left(f\right)$ of the incident radiation as

• A.
• B.
• C.
• D.

Answer 1

Answer: (B)

From Einstein's photoelectric equation, we have
$K_{max}=hf-{\varphi }_0$ .....(i)
Here, ${\varphi }_0=$ work function of the surface
$=$ constant
From Equation. (i), graph of $K_{max}v/sf$ is