Assertion :Resonance frequency will decrease in $L C R$ series circuit if a dielectric slab is inserted in between the plates of the capacitor. Reason: By doing so, capacity of capacitor will increase.

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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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
$ω = \frac{1}{\sqrt{L C}}$
By inserting a slab, $C$ will increase. So, $ω$ will decrease.

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