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Computer the speed of the electromagneti...

Computer the speed of the electromagnetic wave in a medium if the amplitude of electric and magnetic fields are `3xx10^(4)N C^(-1)` and `2xx10^(-4)T`, respectively.

Text Solution

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The amplitude of the electric field, `E_(@) = 3 xx 10^(4) NC^(-1)`
The amplitude of the magnetic field, `B_(@) = 2 xx 10^(-4) T`. Therefore, speed of the electromagnetic wave in a medium is
`v = (3xx10^(4))/(2xx10^(-4))=1.5xx10^(8)ms^(-1)`
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