The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than `2480 nm` is incident on it. The ba

Question

The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than `2480 nm` is incident on it. The ba

The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than `2480 nm` is incident on it. The band gap in `(eV)` for the semiconductor is.
A. 0.9
B. 0.7
C. 0.5
D. 1.1

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
`E_g=(hc)/lambda=(1240 eV nm)/(2480 nm)=0.5 eV`

4 views Answered 2023-02-05 15:29