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The electrical conductivity of semicondu...

The electrical conductivity of semicondutor increases when electromagnetic radiation of wavelength shorter than 29800 Å is incident on it. The band gap for the semiconductor is

A

0.83 eV

B

0.64 eV

C

0.42 eV

D

0.36 eV

Text Solution

AI Generated Solution

To find the band gap energy (E_g) of the semiconductor given that its electrical conductivity increases when electromagnetic radiation of wavelength shorter than 29800 Å is incident on it, we can follow these steps: ### Step-by-Step Solution: 1. **Convert Wavelength to Meters**: The given wavelength is 29800 Å. We need to convert this to meters. \[ 1 \, \text{Å} = 10^{-10} \, \text{m} ...
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The electrical conductivity of a semiconductor increases when electromagnatic radiation of wavelength shorter than 2480 nm is incident on it. Find the band gap of the semiconductor. Given h=6.63xx10^(-34)Js, and 1eV=1.6xx10^(-19)J .

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Knowledge Check

  • The electrical conductivity of semicondutor increases when electromagnetic radiation of wavelength shorter than 24800Å is incident on it. The band gap for the semiconductor is

    A
    0.9ev
    B
    0.7 Ev
    C
    0.5 eV
    D
    1.1 eV

  • The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than 2480 nm is incident on it. The band gap of the semiconductor is

    A
    `0.3 eV`
    B
    `0.5 eV`
    C
    `0.7 eV`
    D
    `1.1 eV`

  • 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
    `0.7 eV`
    B
    `0.5 eV`
    C
    `2.5 eV`
    D
    `1.2 eV`

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