Explore topic-wise MCQs in Engineering Physics.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.

1.

The momentum of a photon having energy 1.00 X 10-17 J is ____________

A. 2.33 X 10<sup>-26</sup> kg m/s
B. 3.33 X 10<sup>-26</sup> kg m/s
C. 4.33 X 10<sup>-26</sup> kg m/s
D. 5.33 X 10<sup>-26</sup> kg m/s
Answer» C. 4.33 X 10<sup>-26</sup> kg m/s
Discussion
2.

A frame of reference has four coordinates, x, y, z, and t is referred to as the_____________

A. Inertial frame of reference
B. Non-inertial frame of reference
C. Space-time reference
D. Four-dimensional plane
Answer» D. Four-dimensional plane
Discussion
3.

For Einstein s relation, E2 p2c2 = _____________

A. m<sub>o</sub>c<sup>2</sup>
B. m<sub>o</sub><sup>2</sup>c<sup>4</sup>
C. m<sub>o</sub>c<sup>4</sup>
D. m<sub>o</sub><sup>2</sup>c<sup>6</sup>
Answer» C. m<sub>o</sub>c<sup>4</sup>
Discussion
4.

According to Einstein s Special Theory of Relativity, laws of physics can be formulated based on ____________

A. Inertial Frame of Reference
B. Non-Inertial Frame of Reference
C. Both Inertial and Non-Inertial Frame of Reference
D. Quantum State
Answer» B. Non-Inertial Frame of Reference
Discussion
5.

The orbit of mercury is changing slightly due to the sun s gravity.

A. True
B. False
Answer» B. False
Discussion
6.

If the sun radiates energy at the rate of 4 x 1026 Js-1, what is the rate at which its mass is decreasing?

A. 5.54 x 10<sup>9</sup> kgs<sup>-1</sup>
B. 4.44 x 10<sup>9</sup> kgs<sup>-1</sup>
C. 3.44 x 10<sup>9</sup> kgs<sup>-1</sup>
D. 2.44 x 10<sup>9</sup> kgs<sup>-1</sup>
Answer» C. 3.44 x 10<sup>9</sup> kgs<sup>-1</sup>
Discussion
7.

As an object approaches the speed of light, it s mass becomes _____________

A. Zero
B. Double
C. Remains Same
D. Infinite
Answer» E.
Discussion