Light of frequency $v$ falls on a metal whose work function is $hv_0$. Choose the most appropriate condition from the following under which the photoelectric effect will take place:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → $v>v_0$
For the photoelectric effect to occur, the energy of the incident light must be greater than or equal to the work function.
$hv>hv_0$ [$v_0$ = Threshold frequency]
$⇒v>v_0$