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.

Velocity of electromagnetic radiation is more in a vacuum than in any medium.

A. True
B. False
Answer» B. False
2.

Which of the following is the wavenumber of UV and Visible radiation?

A. 1 x 10<sup>6</sup> to 1.3 x 10<sup>4</sup> m<sup>-1</sup>
B. 1 x 10<sup>6</sup> to 1.3 x 10<sup>4</sup> m
C. 13 27 m<sup>-1</sup>
D. 1 x 10<sup>6</sup> to 1.3 x 10<sup>4</sup> m<sup>2</sup>
Answer» B. 1 x 10<sup>6</sup> to 1.3 x 10<sup>4</sup> m
3.

How is the wave number of electromagnetic radiation related to wavelength?

A. It is the reciprocal of wavelength
B. It is directly proportional to wavelength
C. It is not related to wavelength
D. It is equal to wavelength
Answer» B. It is directly proportional to wavelength
4.

Which of the following is false about the wavelengths of electromagnetic radiation?

A. Radiation with short wavelengths have high energies
B. Energy does not depend on wavelength
C. Radiation with long wavelengths have low energies
D. Energy depends on wavelength
Answer» C. Radiation with long wavelengths have low energies
5.

Electromagnetic radiation can travel through a vacuum.

A. True
B. False
Answer» B. False
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