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Q.

Three semiconductors are arranged in the increasing order of their energy gap as follows.  The correct arrangement is

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a

Silicon, germanium, tellurium

b

Tellurium, germanium, silicon

c

Silicon, tellurium, germanium

d

Tellurium, silicon, germanium

answer is A.

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Detailed Solution

The energy gap in the case of germanium  is 0.74 eV. In the case of silicon, the energy gap is nearly 1 eV.

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