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| Consider the two statements: Statement-1 For metals, relaxation time for electrons decreases with increase in temperature. Statement-2 With the increase in temperature, number of collision per unit time that electrons made with lattice ion also increases |
Both 1 and 2 are true, 2 is not a correct explanation of 1 Both 1 and 2 are true, 2 is the correct explanation of 1 1 is true and 2 is false
2 is true and 1 is false |
| Both 1 and 2 are true, 2 is not a correct explanation of 1 |
| Since in metals resistance increases with temperature so the relaxation of electrons decreases with increasing temperature and not due to collisions of electron with lattice. |
