First slide

Classification of semi-conductors

Question

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

Moderate

A

Tellurium, germanium, silicon
B

Tellurium, silicon, germanium
C

Silicon, germanium, tellurium
D

Silicon, tellurium, germanium

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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