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The electrical conductivity of a semicon...

The electrical conductivity of a semiconductor increases when electromagnatic radiation of wavelength shorter than 2480 nm is incident on it. The band gap (in eV) for the semiconductor is `[hc=1242 eV nm]`

A

`0.9`

B

`0.7`

C

`0.5`

D

`1.1`

Text Solution

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The correct Answer is:
C
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