In an electromagnetic wave in free space the root mean square value of the electric field is E r m s = 6 V m - 1 . The peak value of the magnetic field is

Question

In an electromagnetic wave in free space the root mean square value of the electric field is E r m s = 6 V m - 1 . The peak value of the magnetic field is, 1.41 × 10 - 8 T, 2.83 × 10 - 8 T, 0.70 × 10 - 8 T, 4.23 × 10 - 8 T

MARKS App · Accepted Answer

Speed of electromagnetic wave c is given by, E r m s B r m s = c B r m s = E r m s c = 6 3 × 10 8 B r m s = 2 × 10 - 8 B r m s = B 0 2 B 0 = 2 × B r m s = 2 × 2 × 10 - 8 = 2.83 × 10 - 8 T

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