Semiconductor Diode - MSQ - Physics MCQ

Formation of potential of p-n junction diode depends on temperature, biased voltage and doping density.
The correct answers are: Temperature, Biased voltage, Doping density

Characteristics of any ideal switch is that it should offer zero resistance when ON and infinite resistance when OFF.
The correct answers are: Zero resistance when ON, Infinite resistance when OFF

Full wave rectifier consists of two diodes each with different polarity ends which help it keep running both in positive and negative half. Average or dc value of load current 
The correct answers are: We need two diodes placed at opposite polarity, Ripple factor = 0.483, Maximum Rectification efficiency η = 81.1 %

We know that zener diode has sharp breakdown voltage. It is always reverse biased and heavily doped diode. There is similarity between forward characteristic curve of a diode.
The correct answers are: A zener diode has sharp breakdown voltage, A zener diode is always reverse biased, The zener diode is a heavily doped diode

When a p-type semiconductor having holes as majority carrier is clamped with a ntype semiconductor having electron as majority carrier.

Some electrons from n-side goes to p-side and some holes goes to n-side, thus creates a potential barrier, which
(i) depends on temperature
(ii) depends on fermi level
(iii) forbidden energy gap Eg
(iv) majority carriers
The correct answers are: It depends on difference between fermi levels on two sides of fermi level, It depends on forbidden energy-gap on two types of semiconductors, It depends on impurity concentration in p and n-type semiconductors

Zener diode and Avalanche photodiode operates only in reverse bias condition. The correct answers are: Solar cell, LASER diode

For a p-n junction diode, barrier potential decreases with forward and increases with reverse biasing.
The correct answers are: increase with reverse bias, decrease with forward bias

The finite temperature, the position of fermi level would depend on both 
The correct answers are: depends on, depends on

Any clamper consists of a diode, resistor and capacitor. It does not require any inductor. It does not change the appearance but only shifts the dc level of any given signal.
The correct answers are: does not change appearance of input signal, shifts dc level of the waveform

A normal clamper consists of a diode, a resistor and a capacitor that shifts a waveform to a different dc level without changing the appearance of the applied signal.

The correct answers are: Capacitor, Diode, Resistor