For an electromagnetic wave propagating in vacuum The ratio of amplitude of magnetic field to that of electric field is equal to
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a
The speed of light in vacuum
b
Reciprocal of speed of light in vacuum
c
The ratio of magnetic permeability to the electric susceptibility of vacuum
d
Unity
answer is B.
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Detailed Solution
The amplitude of magnetic field and electric field for an electromagnetic wave propagating in vacuum are related asE0=B0cWhere, c is the speed of light in a vacuum.⇒B0E0=1c; reciprocal of speed of light.