Assertion(A) : Non – polar materials do not have any permanent dipole moment. Reason(R) : When a non-polar material is placed in an electric field, the centre of the positive charge distribution of its individual atom or molecule coincides with the centre of the negative charge distribution.

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Assertion(A) : Non – polar materials do not have any permanent dipole moment.
Reason(R) : When a non-polar material is placed in an electric field, the centre of the positive charge distribution of its individual atom or molecule coincides with the centre of the negative charge distribution.

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Both A and R are true and R is the correct explanation of A

A is false but R is true

A is true but R is false

Both A and R are but R is NOT the correct explanation of A

answer is C.

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Detailed Solution

Non – polar materials do not have any permanent dipole moment. But when placed in external electric field, the separation of charges occurs, and net dipole moment appears.

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