Assertion :Two capacitors are connected in series with a battery. Energy stored across them is in inverse ratio of their capacity. Reason: $U = \frac{1}{2} q V$ or $U \propto q V$ .

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Energy stored in capacitor is $U = \frac{1}{2} q V = \frac{1}{2} q (q / C) = \frac{q^{2}}{2 C}$
If they are initially uncharged and in series so charge is same for both so $U \propto \frac{1}{C}$
Thus, assertion and reason is correct but reason is not a correct explanation.

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