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In a p-type semiconductor the acceptor l...

In a p-type semiconductor the acceptor level is situated 60 m eV above the valence band. The maximum wavelength of light required to produce a hole will be [use hc `=12400 eV Å]`.

A

`0.207xx10^(-5)m`

B

`2.07xx10^(-5)m`

C

`20.7xx10^(-5)m`

D

`2075xx10^(-5)m`

Text Solution

Verified by Experts

The correct Answer is:
B
From `lamda=(hc)/E`
`=(6.62xx10^(-34)xx3xx10^(8))/(60xx10^(-3)xx1.0xx10^(-19))`
`=2.0xx10^(-5)m`
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