Explore topic-wise MCQs in Physics.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.

1.

Gauss s Law cannot be applied in a medium that has relative permittivity greater than 1. This statement is ________

A. True
B. False
Answer» C.
Discussion
2.

Net inward and outward flux of a closed surface are 1 and 2. What is the charge enclosed inside the surface?

A. Zero
B. -( <sub>1</sub>- <sub>2</sub>) <sub>o</sub>
C. ( <sub>1</sub>- <sub>2</sub>) <sub>o</sub>
D. ( frac {( phi_1 + phi_2)}{ varepsilon_o} )
Answer» C. ( <sub>1</sub>- <sub>2</sub>) <sub>o</sub>
Discussion
3.

A non-conducting cube of side length 1m has a spherical cavity of radius 0.1m inside it. The system has a charge density of 2.5 C/m3. What is the total flux coming out of the surface of the cube?

A. 2.8*10<sup>31</sup> Nm<sup>2</sup>C<sup>-1</sup>
B. 2.8*10<sup>11</sup> Nm<sup>2</sup>C<sup>-1</sup>
C. 5.7*10<sup>11</sup> Nm<sup>2</sup>C<sup>-1</sup>
D. 0.2*10<sup>11</sup> Nm<sup>2</sup>C<sup>-1</sup>
Answer» C. 5.7*10<sup>11</sup> Nm<sup>2</sup>C<sup>-1</sup>
Discussion
4.

If a 10C charge is placed in a medium having relative permittivity 5.4, what will be the amount of flux coming out of that charge?

A. 1*10<sup>11</sup> Nm<sup>2</sup>C<sup>-1</sup>
B. 2.1*10<sup>11</sup> Nm<sup>2</sup>C<sup>-1</sup>
C. 2.1*10<sup>10</sup> Nm<sup>2</sup>C<sup>-1</sup>
D. 7.1*10<sup>11</sup> Nm<sup>2</sup>C<sup>-1</sup>
Answer» C. 2.1*10<sup>10</sup> Nm<sup>2</sup>C<sup>-1</sup>
Discussion
5.

Gauss s Law cannot be applied in ________

A. Hollow sphere
B. Solid sphere
C. Cube
D. Unbounded surface
Answer» E.
Discussion
6.

Electric flux coming out of a single Na+ ion is _________ Nm2C-1

A. 1.8*10<sup>-8</sup>
B. 1.8*10<sup>-10</sup>
C. 5.4*10<sup>-8</sup>
D. 3.6*10<sup>-8</sup>
Answer» B. 1.8*10<sup>-10</sup>
Discussion