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The electrical conductivity of a semicon...

The electrical conductivity of a semiconductor .increases when electromagnetic radiation of wavelength shorter than 2500 nm is incident on it. What is the hand gap energy in eV for the semiconductor ? [h=6.63xx10^-34J-s]

A

`0.9eV`

B

`1.2eV`

C

`1.8eV`

D

`0.5eV`

Text Solution

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The correct Answer is:
D
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