Nature of Electromagnetic Radiation NEET Questions

Physical Chemistry - Atomic Structure

Nature of Electromagnetic Radiation MCQ Questions


1.
Electromagnetic radiation is produced by the oscillation of:
A.
Only neutrons in motion
B.
A charged particle
C.
Only protons at rest
D.
A neutral particle only
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ANSWER :
B. A charged particle
2.
Which scientist first proposed the electromagnetic wave theory of radiation, associating it with electric and magnetic fields?
A.
Albert Einstein
B.
Niels Bohr
C.
Max Planck
D.
James Clerk Maxwell
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ANSWER :
D. James Clerk Maxwell
3.
According to Maxwell's theory, an electromagnetic wave consists of oscillating electric and magnetic fields that are:
A.
Parallel to each other and to the direction of propagation
B.
Perpendicular to each other and to the direction of propagation of the wave
C.
Independent of the direction of propagation
D.
Parallel to each other but perpendicular to the direction of propagation
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ANSWER :
B. Perpendicular to each other and to the direction of propagation of the wave
4.
Unlike sound waves, electromagnetic radiation does not require which of the following for its propagation?
A.
A source of energy
B.
A material medium
C.
A wavelength
D.
A frequency
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ANSWER :
B. A material medium
5.
All types of electromagnetic radiation travel through vacuum with the same:
A.
Energy
B.
Wavelength
C.
Frequency
D.
Speed
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ANSWER :
D. Speed
6.
The distance between two consecutive crests or troughs of a wave is known as its:
A.
Wavenumber
B.
Wavelength
C.
Amplitude
D.
Frequency
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ANSWER :
B. Wavelength