Easy MCQ +4 / -1 PYQ · JEE Mains 2022

Given below two statements : One is labelled as Assertion (A) and other is labelled as Reason (R).

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 it's individual atom or molecule coincides with the centre of the negative charge distribution.

In the light of above statements, choose the most appropriate answer from the options given below.

  1. A Both (A) and (R) are correct and (R) is the correct explanation of (A).
  2. B Both (A) and (R) are correct and (R) is not the correct explanation of (A).
  3. C (A) is correct but (R) is not correct. Correct answer
  4. D (A) is not correct but (R) is correct.

Solution

<p>Non-polar bonds do not have any net dipole moment and are generally formed in compound where there is presence of symmetry.</p> <p>When non polar material placed in electric field, due to redistribution of charges dipole is formed.</p> <p>So, (R) is incorrect.</p>

About this question

Subject: Physics · Chapter: Electrostatics · Topic: Dielectrics

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