Nature of Electromagnetic Radiation NEET Questions

Physical Chemistry - Atomic Structure

Nature of Electromagnetic Radiation MCQ Questions


13.
Which property remains constant for all electromagnetic waves in a vacuum?
A.
Wavelength
B.
Frequency
C.
Speed
D.
Energy
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ANSWER :
C. Speed
14.
The electromagnetic spectrum consists of:
A.
Only visible light
B.
All forms of radiation
C.
Only radio waves
D.
Only UV and X-rays
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ANSWER :
B. All forms of radiation
15.
Increasing the frequency of an electromagnetic wave will:
A.
Increase its wavelength
B.
Decrease its wavelength
C.
Have no effect
D.
Increase amplitude
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ANSWER :
B. Decrease its wavelength
16.
Gamma rays are produced by:
A.
Radioactive decay
B.
Current-carrying wire
C.
Vibrating electrons
D.
Boiling water
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ANSWER :
A. Radioactive decay
17.
Infrared radiation is mostly associated with:
A.
Heat
B.
UV light
C.
Gamma rays
D.
Magnetic fields
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ANSWER :
A. Heat
18.
Which of these waves can be detected by the human eye?
A.
Ultraviolet
B.
Infrared
C.
Visible light
D.
Microwaves
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ANSWER :
C. Visible light