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

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

(a) All Ec, Eg, Ev increase

(b) Ec and Ev increase but Eg decreases

(c) Ec and Ev decrease but Eg increases

(d) All Ec, Eg, Ev decrease

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Best answer

Correct Option (c) Ec and Ev decrease but Eg increases

Explanation:

If lattice constant of semi-conductor is decreased, then Ec and Ev decrease but Eg increases

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