Which logic gate is represented by the following truth table?

$A$	$B$	$Y$
$0$	$0$	$0$
$0$	$1$	$1$
$1$	$0$	$1$
$1$	$1$	$0$

For the given circuit,the input digital signals are applied at the terminals $A, B$ and $C$. What would be the output at the terminal $y$?

$A$ person applies a sine wave and a square wave to an $AND$ gate as shown in figures $(i)$ and $(ii)$. Assuming that both the voltages are applied in phase, the person observes the output at $E$ and $F$ on $(i)$ and $(ii)$, respectively. [Assume a minimum voltage of $5 \ V$ is equivalent to logic $1$].

What is the output $Y$ in the following circuit, when all the three inputs $A, B, C$ are first '$0$' and then '$1$'?

The logic operation performed by the following circuit is

The following figure shows a logic gate circuit with inputs $A$ and $B$ and output $Y$. If the voltage waveforms of $A, B$ and $Y$ are as given,then the logic gate is