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A semiconductor with a band gap of 2.5 e...

A semiconductor with a band gap of 2.5 eV is used to fabricate a p-n photodiode . It can detect a signal of wavelength

A

4000 nm

B

6000 Å

C

6000 nm

D

4000 Å

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The correct Answer is:
D
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NEW JOYTHI PUBLICATION-SEMICONDUCTOR ELECTRONICS : MATERIALS , DEVICES AND SIMPLE CIRCUITS -COMPETITIVE EXAM CORNER
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  3. A semiconductor with a band gap of 2.5 eV is used to fabricate a p-n p...

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  4. In the circuit given A , B and C are inputs and Y is the output T...

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  9. The heavily and lightly doped regions of a bipolar junction transistor...

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  10. The device used for detecting optical signal is

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  11. The logical operation carried out by the above circuit is

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  12. In CE transistor amplifier , if the base current is increased by 20 mu...

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  13. If an ideal junction diode is connected as shown , then the value of t...

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  14. Identify the mismatched pair from the following

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  15. In a common emitter configuration a transistor has beta = 50 and input...

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  17. The output of an AND gate is connected to both the inputs of a NOR gat...

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  18. In p-type semiconductor , the acceptor level lies

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  19. If the feedback voltage is increased in a negative feedback amplifier ...

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