Semiconductor Materials – Exercise – 2

86. A semiconductor has …….. band.

(a) almost empty valence
(b) almost empty conduction
(c) almost full conduction
(d) none of the above

Answer
Answer : (b)
Explanation
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87. In a semiconductor, the energy gap between valence and conduction bands is about ……..

(a) 15 eV
(b) 100 eV
(c) 50 eV
(d) 1 eV

Answer
Answer : (d)
Explanation
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88. A semiconductor has …….. band.

(a) almost empty valence
(b) almost empty conduction
(c) almost full conduction
(d) none of the above

Answer
Answer : (b)
Explanation
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89. In a semiconductor, the energy gap between valence and conduction bands is about ……..

(a) 15 eV
(b) 100 eV
(c) 50 eV
(d) 1 eV

Answer
Answer : (d)
Explanation
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90. A semiconductor is formed by …….. bonds.

(a) covalent
(b) electrovalent
(c) co-ordinate
(d) none of the above

Answer
Answer : (a)
Explanation
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