If the lattice constant of this semicond...

If the lattice constant of this semiconductor is decreased, then which of the following is correct

A

`E_(c )` and `E_(v)` increase, but `E_(g)` decrease

B

`E_(c )` and `E_(v)` decrease, but `E_(g)` increase

C

All `E_(c ), E_(g), E_(v)` decrease

D

All `E_(c ), E_(g), E_(v)` increase

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The correct Answer is:

B

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