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Wave Equation of EM Waves

the minimum l...

Question

the minimum length of antenna required to transmit a radio signal of frequency 10MHz is?

A

30

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B

40

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C

50

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D

60

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Solution

The correct option is A 30
Here, f=10MHz= $10^{7} H z$
$λ = \frac{c}{f} = \frac{3 \times 10^{8}}{10^{7}} = 30 m$

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