Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

____________ gives the relationship between wavelength and temperature.

A. Fourier’s law
B. Wein’s law
C. Newton law
D. Plank’s law
Answer» C. Newton law
Discussion
2.

According to ___________, the wavelength of the emitted radiation is inversely proportional to its frequency.

A. Fourier’s law
B. Pascal law
C. Newton law
D. Plank’s law
Answer» E.
Discussion
3.

What are factors of thermal radiation?

A. Time
B. Temperature
C. Volume
D. Pressure
Answer» C. Volume
Discussion
4.

Can a good insulator prevent radiation?

A. True
B. False
Answer» B. False
Discussion
5.

What is the wavelength of thermal radiation?

A. 0.1 μm to 1000 μm.
B. 1 μm to 100 μm.
C. 0.01 μm to 100 μm.
D. 0.1 μm to 100 μm.
Answer» E.
Discussion
6.

In thermal radiation, thermal energy is converted to ___________________

A. kinetic energy
B. potential energy
C. electromagnetic energy
D. thermal energy
Answer» D. thermal energy
Discussion
7.

The emissivity of radiation is between__________

A. 0 and 1
B. 0 and 10
C. 0 and 15
D. 0 and 11
Answer» B. 0 and 10
Discussion
8.

Are these statements about the thermal radiation true?Statement 1: It follows Stefan-Boltzmann Law.Statement 2: It also depends on Wien’s Displacement Law.

A. True, False
B. True, True
C. False, True
D. False, False
Answer» C. False, True
Discussion
9.

Which law governs the thermal radiation?

A. Fourier’s law
B. Pascal law
C. Newton law
D. Stefan-Boltzmann Law
Answer» E.
Discussion
10.

Which is the fastest mode of heat transfer?

A. Conduction
B. Convection
C. Radiation
D. Both conduction and convection
Answer» D. Both conduction and convection
Discussion
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