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The magnetic field in plane electromagne...

The magnetic field in plane electromagnetic wave is given by
`B_(y) = 4 xx 10^(-6) sin (0.2 xx 10^(4) x + 0.6 xx 10^(12)t)`T, then
find
i) Wavelength
(ii) Speed of the wave

A

31.4 `xx 10^(-3) m, 0.3 xx 10^(8)` m/s

B

`3.14 xx 10^(-3) m, 3 xx 10^(8)` m/s

C

`3.14 xx 10^(-6) m, 3 xx 10^(6) `m/s

D

`3.14 xx 10^(-2) m, 3 xx 10^(2) `m/s

Text Solution

Verified by Experts

The correct Answer is:
B
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