Explore topic-wise MCQs in Engineering Physics Questions and Answers.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

Assertion: The radiation from the sun’s surface varies as the fourth power of its absolute temperature.

A. Reason: Sun is not a black body.
B. Both assertion and reason are true and the reason is the correct explanation of the assertion
C. Both assertion and reason are true but the reason is not a correct explanation of the assertion
D. Assertion is true but the reason is false
E. Both assertion and reason are false
Answer» D. Assertion is true but the reason is false
Discussion
2.

Assertion: For higher temperatures, the peak emission wavelength of a black body shifts to lower wavelengths.

A. Reason: Peak emission wavelength of black body is proportional to the fourth power of temperatures.
B. Both assertion and reason are true and the reason is the correct explanation of the assertion
C. Both assertion and reason are true but the reason is not a correct explanation of the assertion
D. Assertion is true but the reason is false
E. Both assertion and reason are false
Answer» D. Assertion is true but the reason is false
Discussion