Assertion :Gauss's law can't be used to calculate electric field near an electric dipole. Reason: Electric dipole don't have symmetrical charge distribution.

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.
To apply gauss law, the there must exist a symmetric distribution of charges, such that the gaussian surface could have a single value of electric field for the given surface in the equation $\frac{q}{ϵ_{0}} = \int \to E . d \to A$
Electric dipoles have no surface that have a symmetric distribution of electric field around, thus Gauss' Law cannot be used for the task.

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