Semiconductor Electronics question for JEE Main (JEE Main 2024 (5 Apr, Shift 2)), with solution

Answer: (C) $A = 0,\ B = 0$

First OR gate: $A + B$. AND gate: $B\cdot1 = B$.
$$Y = (A + B) + B = A + B$$
$Y = 0$ only when $A = 0$ and $B = 0$.

Solution by Sreeraj P, M.Sc Physics