Question

Assertion (A): Resistivity of a perfect single crystal of a metal goes to zero as T approaches zero.

Reason (R): Scattering of electrons is due to deviations from perfect periodicity of lattice.

a.

Both A and R are true and R is correct explanation of A

b.

Both A and R are true but R is not correct explanation of A

c.

A is true but R is false

d.

A is false but R is true

Answer: (b).Both A and R are true but R is not correct explanation of A

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Q. Assertion (A): Resistivity of a perfect single crystal of a metal goes to zero as T approaches zero. Reason (R): Scattering of electrons is due to deviations from perfect...

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