AIPMT 2010 Prelims | Semiconductor Electronics Question 73 | Physics

Which one of the following bonds produces a solid that reflects light in the visible region and whose electrical conductivity decreases with temperature and has high melting point ?

metallic bonding

van der Waal's bonding

ionic bonding

covalent bonding

AIPMT 2010 Prelims

MCQ (Single Correct Answer)

-1

The device that can act as a complete electronic circuit is

junction diode

integrated circuit

junction transistor

zener diode

AIPMT 2010 Prelims

MCQ (Single Correct Answer)

-1

Which one of the following statement is false ?

Pure Si doped with trivalent impurities gives a p-type semiconductor.

Majority carries in a n-type semiconductor are holes.

Minority carries in a p-type semiconductor are electrons.

The resistance of intrinisic semiconductor decreases with increase of temperature.

AIPMT 2009

MCQ (Single Correct Answer)

-1

Sodium has body centred packing. Distance between two nearest atoms is 3.7 $$\mathop A\limits^ \circ $$. The lattice parameter is

4.3 $$\mathop A\limits^ \circ $$

3.0 $$\mathop A\limits^ \circ $$

8.6 $$\mathop A\limits^ \circ $$

6.8 $$\mathop A\limits^ \circ $$

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