Physics - Semiconductors Question with Solution | TestHub

Let the inputs be $A$ and $B$, and the output be $Y$.

According to the given conditions:
When $A=1$ and $B=0$, $Y=1$
When $A=0$ and $B=0$, $Y=1$

Let us check the truth tables of the given logic gates:

For an AND gate:
$A=0,B=0\Rightarrow Y=0$
$A=1,B=0\Rightarrow Y=0$

For an X-OR gate:
$A=0,B=0\Rightarrow Y=0$
$A=1,B=0\Rightarrow Y=1$

For a NAND gate:
$A=0,B=0\Rightarrow Y=1$
$A=1,B=0\Rightarrow Y=1$

For a NOR gate:
$A=0,B=0\Rightarrow Y=1$
$A=1,B=0\Rightarrow Y=0$

The given conditions are only satisfied by the NAND gate.

Answer: a NAND gate.