Which of the following depicts the output of the full-wave rectifier with a capacitor filter for the given $AC$ input?

$A$ diode is connected to $220 \, V$ $(rms)$ $ac$ in series with a capacitor as shown in the figure. The voltage across the capacitor is..... $V$

In the diagram,the input is across the terminals $A$ and $C$ and the output is across the terminals $B$ and $D$,then the output is

In the circuit given below, $V(t)$ is the sinusoidal voltage source. The voltage drop $V_{AB}(t)$ across the resistance $R$ is:

Write the principle of a rectifier.

In half-wave rectification,what is the output frequency if the input frequency is $50 \;Hz$? What is the output frequency of a full-wave rectifier for the same input frequency?