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A p-n photodiode is fabricated from a se...

A `p-n` photodiode is fabricated from a semiconductor with a band gap of `2.5 eV`. It can detect a signal of wavelength

A

`496Å`

B

6000Å

C

4000 nm

D

6000 nm

Text Solution

Verified by Experts

The correct Answer is:
A
`lambda_(max)=(hc)/(eV)`
`=(1242eVÅ)/(2.5eV)=4960Å`
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