MCQ
For germanium crystal, the forbidden energy gap in joules is
  • $1.12 \times {10^{ - 19}}$
  • B
    $1.76 \times {10^{ - 19}}$
  • C
    $1.6 \times {10^{ - 19}}$
  • D
    Zero

Answer

Correct option: A.
$1.12 \times {10^{ - 19}}$
a
(a)For Ge, ${E_g} = 0.7\,eV = 0.7 \times 1.6 \times {10^{ - 19}}J = 1.12 \times {10^{ - 19}}J$

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