Explore topic-wise MCQs in Physics.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of the following is an example of a molecule whose centre of mass of positive and negative charges does not coincide each other?

A. NH<sub>3</sub>
B. H<sub>2</sub>
C. CH<sub>4</sub>
D. CO<sub>2</sub>
Answer» B. H<sub>2</sub>
Discussion
2.

X is a substance which does not allow the flow of charges through it but permits them to exert electrostatic forces on one another through it. Identify X.

A. Polar molecule
B. Dielectric
C. Non-polar molecule
D. Equipotential
Answer» C. Non-polar molecule
Discussion
3.

The molecules of a polar dielectric have no dipole moment. State true or false.

A. True
B. False
Answer» C.
Discussion
4.

In which type of molecule positive and negative charges does not coincide with each other?

A. Isentropic
B. Equipotential
C. Polar
D. Non-polar
Answer» D. Non-polar
Discussion
5.

What is the induced dipole moment developed per unit volume of a dielectric when placed in an external electric field called?

A. Relative permittivity
B. Polarisation susceptibility
C. Electric susceptibility
D. Polarisation density
Answer» E.
Discussion
6.

Which of the following is an example of a molecule whose centre of mass of positive and negative charges coincide each other?

A. CO<sub>2</sub>
B. CO
C. CH<sub>3</sub>OH
D. NH<sub>3</sub>
Answer» B. CO
Discussion
7.

What is the ratio of the polarization to o times the electric field called?

A. Polarisation density
B. Electric susceptibility
C. Dielectric strength
D. Dielectric susceptibility
Answer» C. Dielectric strength
Discussion
8.

In which type of molecule positive and negative charges coincide with each other?

A. Polar
B. Unipolar
C. Non-polar
D. Bipolar
Answer» D. Bipolar
Discussion