The amplitude of magnetic field in an electromagnetic wave …

Physics Electromagnetic Waves EM Wave Properties Single Correct MCQ

Published on: September 12, 2026

The amplitude of magnetic field in an electromagnetic wave propagating along y-axis is 6.0 x 10 -7 T. The maximum value of electric field in the electromagnetic wave is

2x10 15 Vm -1

180 Vm -1

6.0 x 10 -7 Vm -1

5 x 10 14 Vm -1

Text Solution

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The correct answer is:

The relation between the electric field and magnetic field is given by

The given data is

B 0 = 6 x 10 -7 T

c = 3 x 10 8 m s -1

Thus, the maximum value of the electric field is

E 0 = (3 x 10 8 ) x (6 x 10 -7 )= 180 V m -1

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