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(a) An e.m. wave is travelling in a medi...

(a) An e.m. wave is travelling in a medium with a velocity `vecv=vhati`.Draw a sketch showing the propagation of the e.m. wave, indicating the direction of the oscillating electric and magentic fields.
(b) How are the magnitudes of the electric and magnetic fields related to the velocity of the e.m. wave?

Text Solution

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(a) N/A
(b) `E_0=cB_0`, where `E_0` is the maximum value
of electric field, `B_0` is the maximum value of
magnetic field and c is the velocity of the e.m.
wave.
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