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AM radio signals use amplitude modulation of the radio waves to transmit a signal. A typical wavelength of an AM radio wave is 300. meters. What is the frequency of such a radio wave? a) 1.00 µHz b) 1.00 mHz c) 1.00 kHz d) 1.00 MHz e) 1.00 Hz

Answer :

Answer:

The frequency of such a radio wave is 1 MHz.

(d) is correct option

Explanation:

Given that,

Wave length = 300 m

We know that,

Speed of light [tex]c= 3\times10^{8}\ m/s[/tex]

We calculate the frequency

Using formula of frequency

[tex]c = f\times\lambda[/tex]

[tex]f = \dfrac{c}{\lambda}[/tex]

Put the value into the formula

[tex]f=\dfrac{3\times10^{8}}{300}[/tex]

[tex]f =1\times10^{6}\ Hz[/tex]

[tex]f =1\ MHz[/tex]

Hence, The frequency of such a radio wave is 1 MHz.

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