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A P-type semiconductor has acceptor leve...

A `P`-type semiconductor has acceptor levels `57 meV` above the valence band. The maximum wavelength of light required to create a hole is (Planck's constant `h=6.6xx10^(-34)J-s`)

A

57 Å

B

`57 xx 10^(-3) Å`

C

`217100 Å`

D

`11.61 xx 10^(-23) Å `

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The correct Answer is:
C
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MOTION-SEMI CONDUCTOR AND LOGIC GATES-EXERCISE 2
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  2. If the two ends of a p-n junction are joined by a conducting wire, the...

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  3. A P-type semiconductor has acceptor levels 57 meV above the valence ba...

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  4. A doped semiconductor has impurity levels 32 meV below the conduction ...

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  5. The mean free path of a conduction electron in a metal is 5 xx 10^(-8)...

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  6. Which of the following statements is correct ?

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  7. In semiconductor the concentrations of electron and holes are 8xx10^(1...

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  8. The current through an ideal PN junction shown in the following circui...

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  9. Two identical p-n junctions may be connected in series in which a batt...

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  10. In the figure an A.C of rms voltage 200 volt is appled to the circuit ...

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  11. Which of the following statements is wrong ?

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  12. If the following input signal is sent through a P-N junction diode, th...

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  13. The value of current in the following diagram will be –

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  14. In which of the following figure the junction diode is reverse biased ...

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  15. Two identical capacitors A and B are charged to the same potential V a...

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  16. In the circuit shown in figure, Voltage V0 is–

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  17. Determine current I in the configuration –

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  18. In the given circuit V(01) " and " V(02) are -

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  19. A cube of germanium is placed between the poles of a magnet and a volt...

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  20. A full wave rectifier circuit along with the output is shown in the fo...

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