1.

Assertion: Weston is a standard cell. Reason: its e.m.f. does not change with temperature.

Answer»

if both ASSERTION and reason are true and the reason is the correct explanation of the assertion.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
If assertion is true but reason is false
If the assertion and reason both are false.

Solution :STANDARD cell is one WHOSE e.m.f. ALMOST does not change with temperature.


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