AIPMT 2005 | Semiconductor Electronics Question 91 | Physics

Copper has face centered cubic (fcc) lattice with interatomic spacing equal to 2.54 $$\mathop A\limits^ \circ $$. The value of lattice constant for this lattice is

2.54 $$\mathop A\limits^ \circ $$

3.59 $$\mathop A\limits^ \circ $$

1.27 $$\mathop A\limits^ \circ $$

5.08 $$\mathop A\limits^ \circ $$

AIPMT 2005

MCQ (Single Correct Answer)

-1

In a p-n junction photo cell, the value of the photo-electromotive force profuced by monochromatic light is proportional to

The barrier voltage at the p-n junction.

The intensity of the light falling on the cell.

The frequency of the light falling on the cell.

The voltage applied at the p-n junction.

AIPMT 2005

MCQ (Single Correct Answer)

-1

Zener diode is used for

amplification

rectification

stabilisation

producing oscillations in an oscillator.

AIPMT 2005

MCQ (Single Correct Answer)

-1

Application of a forward bias to a p-n junction

widens the depletion zone

increases the potential difference across the depletion zone

increases the number of donors on the n side

decreases the electric field in the depletion zone.

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