Assertion :Statement-1 When a point charge q is placed inside the cavity of a neutral conductor, equal and opposite charges are induced on inner and outer surfaces of the conductor. At a point P, electric field due to charges induced on cavity surface must be non-zero. Reason: Statement-2 Electric field at point P is zero.

Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.

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Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.

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Statement-1 is True, Statement-2 is False.

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Statement-1 is False, Statement-2 is True.

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Solution

The correct option is B Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
The electric field at P due to point charge +q and induced charge -q is zero, not due to induced charge -q on the cavity surface.
If we select a gauss's surface up-to P, we can see the net charge is zero , so what ever electric field will be there will be due to induced charge on outer surface (+q)

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