Assertion :Dielectric polarisation means formation of positive and negative charges inside the dielectric. Reason: Free electron are formed in this process.

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 D Assertion is incorrect but Reason is correct
When an electric field is applied to the dielectric, each molecule of dielectric gets polarised i.e., centres of gravity of positive and negative charges get displaced from each other. On the left face, a net negative charge $- Q$ , and on the right face, a positive charge $+ Q$ , appears. Thus, electric dipoles are produced inside. This is the dielectric polarisation.
Hence assertion is incorrect.

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