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In the question number 38, the frequency corresponding to the given part of electromagnetic wave is

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In the question number 38, the frequency corresponding to the given part of electromagnetic wave is
A. `5.4xx10^(8)Hz`
B. `8.6xx10^(7)Hz`
C. `3.2xx10^(8)Hz`
D. `4.8xx10^(7)Hz`.
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Correct Answer - B
Frequency, `upsilon=(omega)/(2pi)=(5.4xx10^(8)xx7)/(2xx22)`
`=8.6xx10^(7)Hz`
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