If frequency of electromagnetic wave is 60 MHz and it travels in air along z-direction, then the corresponding electric and magnetic field vectors will be mutually perpendicular to each other, and the wavelength of the wave (in m) is:

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Solution

Q.
If frequency of electromagnetic wave is 60 MHz and it travels in air along z-direction, then the corresponding electric and magnetic field vectors will be mutually perpendicular to each other, and the wavelength of the wave (in m) is: [2024]

1 2.5

2 10

3 5

4 2

Ans.
(3)

$S p e e d = W a v e l e n g t h \times F r e q u e n c y$

$\Rightarrow λ = \frac{C}{f} = \frac{3 \times 10^{8}}{60 \times 10^{6}} = 5 m$

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