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:

$v≥v_0$ $v<v_0$ $v>200v_0$ $v<0.5v_0$

$v≥v_0$

The correct answer is Option (1) → $v≥v_0$