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1
COMEDK 2022
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Doping of silicon (Si) with indium (In) leads to the formation of

A
n-type semiconductor
B
metal
C
p-type semiconductor
D
insulator
2
COMEDK 2022
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Which of the following show both Frenkel and Schottky defect?

A
ZnS
B
AgBr
C
NaCl
D
AgCl
3
COMEDK 2022
MCQ (Single Correct Answer)
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Out of Syllabus

How many atoms are present in hcp per unit cell?

A
4
B
2
C
1
D
6
4
COMEDK 2021
MCQ (Single Correct Answer)
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-0
Out of Syllabus

Sodium metal crystallises in a body centred cubic lattice with a unit cell edge of 4.29 $$\mathop A\limits^o $$. The radius of sodium atom is

A
1.86 $$\mathop A\limits^o $$
B
3.22 $$\mathop A\limits^o $$
C
5.72 $$\mathop A\limits^o $$
D
0.93 $$\mathop A\limits^o $$
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