RRB JE 2019: EDC Quiz 9

A peak detector comprises a capacitor and an ideal diode and an ac source in series. Which of the following is true of the circuit.

A clamper circuit
1) Adds or subtracts a dc voltage to or from a waveform
2) Does not change the shape of the waveform
Which of the above statements are correct?

The diodes and capacitors in the circuit shown are ideal. The voltage v(t) across the diode D1 in steady state is

If the circuit shown has to function as a clamping circuit, which one of the following conditions should be satisfied for sinusoidal signal of period T?