Semiconducting Devices Question 170
Question: For germanium crystal, the forbidden energy gap in joules is
[MP PET 2000]
Options:
A) $ 1.12\times {{10}^{-19}} $
B) $ 1.76\times {{10}^{-19}} $
C) $ 1.6\times {{10}^{-19}} $
D) Zero
Show Answer
Answer:
Correct Answer: A
Solution:
For Ge, $ E _{g}=0.7eV=0.7\times 1.6\times {{10}^{-19}}J=1.12\times {{10}^{-19}}J $
