A p‐n photodiode is fabricated from a semiconductor with a band gap of 2.5 
It can detect a signal of wavelength [2009]
A
6000 
B
4000 nm
C
6000 nm
D
4000 A
Text Solution
Verified by ExpertsThe correct answer is:
D
Band gap 
The wavelength corresponding to 2.5 eV
can excite this.
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