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Diamond is very hard because...

Diamond is very hard because

A

it is covalent solid

B

it has large cohesive energy

C

high melting point

D

insoluble in all solvents

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Verified by Experts

The correct Answer is:
b
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FULL MARKS-SEMICONDUCTOR ELECTRONICS-Additional question(M. C.Q)
  1. Which of the following is the weakest kind of the bonding in solids?

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  2. he cations and anions are arranged in alternate form in

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  3. Diamond is very hard because

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  4. Calculate the number of atoms per unit cell of bcc type.

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  5. At absolute zero, Si acts as

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  6. Which of the following, when added as an impurity into the silicon, pr...

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  7. Only P is a pentavalent impurity atom,its doping with germanium produc...

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  8. When arsenic is added as an impurity to silicon, the resulting materia...

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  9. In a p-type semiconductor, the majority carriers of current are

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  10. The depletion layer in the p-n junction region is caused by

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  11. In the depletion region of an unbiased p-n junction diode, there are

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  12. In forward bias the width of potential barrier in a p-n diode

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  13. Reverse bias applied to a junction diode

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  14. Barrier potential of a p-njunction diode does not depend on

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  15. The peak voltage in the output of a half wave diode rectifier fed with...

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  16. A p-n diode can be used as

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  17. Zener diode is used for

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  18. when NPN transistor is used as an amplifier then ……….

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  19. The correct relationship between the two current gains alpha and beta ...

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  20. The correct relation for alpha,beta for a transistor is

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