Statement I: Silicon is preferred over germanium for making semiconductor devices.Statement II: The energy gap for germanium is more than the energy gap of silicon.
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a
Both statements I and II are correct.
b
Statement I is correct but statement II is incorrect
c
Statement I is incorrect but statement II is correct
d
Both statements I and II are incorrect.
answer is B.
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Detailed Solution
The energy gap for germanium is less (0.72 eV) than the energy gap of silicon ( 1.1 eV). Silicon is preferred over germanium for making semiconductor devices because they are abundantly available in nature, do not get easily damaged by heat and cut off current is very low.