Thank you for reporting, we will resolve it shortly
Q.
In the given circuit, the binary inputs at $A$ and $B$ are both $1$ in one case and both $0$ in the next case. The respective outputs at $Y$ in these two cases will be:
WBJEEWBJEE 2017Semiconductor Electronics: Materials Devices and Simple Circuits
Solution:
The output of logic gate circuit
$ Y=\overline{A \cdot B+\bar{A} \bar{B}}$
for $ A=1 $
$ B=1 \Rightarrow Y=0 $
and for $ A=0, B=0 $
$\Rightarrow Y=0$