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at every instant ratio of magnitude of electric field to the magnetic field for an electromagnetic wave in vacuum is equal to speed of radiowavesspeed of gamma raysspeed of lightall of aboveWHY NOT OPTION 4 AS EMW ALSO TRAVEL WITH SPEED OF LIGHT??

Answer» at every instant ratio of magnitude of electric field to the magnetic field for an electromagnetic wave in vacuum is equal to
speed of radiowaves
speed of gamma rays
speed of light
all of above
WHY NOT OPTION 4 AS EMW ALSO TRAVEL WITH SPEED OF LIGHT??


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