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An electron hole pari is formed when lig...

An electron hole pari is formed when light of maximum wavelength 6000 Å is incident on the semiconductor. What is the band gap energy of the semiconductor ? `(h=6.62xx10^(-34)Js)`

A

`2.07xx10^(-19)J`

B

`2.07J`

C

`3.31xx10^(-19)J`

D

`3.07xx10^(-19)J`

Text Solution

Verified by Experts

The correct Answer is:
C
`3.31xx10^(-19)J`
Band gap energy `E=(hc)/(lambda)`
`=(6.62xx10^(-34)xx3xx10^(8))/(6xx10^(-7))`
`=3.31xx10^(-19)J`
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KUMAR PRAKASHAN-SEMICONDUCTOR ELECTRONICS : MATERIALS, DEVICES AND SIMPLE CIRCUITS -Section-D : Multiple Choice Questions (MCQs) (MCQs asked in Competitive Exams)
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  5. Which of the following is not a type of tissue ?

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  6. The output of AND gate is 1, so ……

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  8. A sinusoidal voltage of peak value 220 volts is connected to a diode ...

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  9. In a zener diode, the reverse bias voltage is 3V and width of the depl...

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  10. Gate can be obtained by shorting both the input terminals of a NOR gat...

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  11. The figure shows the input signal A, input signal B and output signal ...

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  12. What kind of p-n junction diode does not require any kind of bias?

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  13. Which logic gate is represented by the following logic gates?

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  14. For the circuit shown in the figure, calculate the equivalent resistan...

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  15. The value of beta of a transistor is 19. The value of alpha will be ……

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  17. The band gaps of a conductor, semiconductor and insulator are respecti...

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  18. Which of following gates produces output of 1 ?

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  19. The electric field for p-n junction is 1xx10^(6) V/m and depletion reg...

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  20. In p-n junction the width of space charge region is approximately ….. ...

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