Transverse Nature of Electromagnetic Waves NEET Questions

Physics - Electromagnetic Waves

Transverse Nature of Electromagnetic Waves MCQ Questions


13.
Which property of EM waves cannot be exhibited by longitudinal waves?
A.
Polarization
B.
Refraction
C.
Diffraction
D.
Reflection
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ANSWER :
A. Polarization
14.
A linearly polarized EM wave has its electric field oscillating:
A.
Along a fixed direction perpendicular to propagation
B.
Along the direction of propagation
C.
Randomly in space
D.
In all directions perpendicular to propagation
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ANSWER :
A. Along a fixed direction perpendicular to propagation
15.
If E and B are the electric and magnetic field vectors of an EM wave, the direction of propagation is given by:
A.
E ร— B
B.
E + B
C.
B ร— E
D.
E ยท B
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ANSWER :
A. E ร— B
16.
The Poynting vector S = (1/ฮผโ‚€)(E ร— B) represents:
A.
Magnetic flux density
B.
Energy stored per unit volume
C.
Force per unit area
D.
Energy flow per unit area per unit time in the direction of propagation
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ANSWER :
D. Energy flow per unit area per unit time in the direction of propagation
17.
Which of the following is NOT a transverse wave?
A.
Sound waves in air
B.
X-rays
C.
Radio waves
D.
Light waves
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ANSWER :
A. Sound waves in air
18.
The transverse nature of EM waves was experimentally verified through:
A.
Diffraction experiments
B.
Reflection experiments
C.
Polarization experiments
D.
Interference experiments
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ANSWER :
C. Polarization experiments