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Scilla [17]
3 years ago
7

AM radio signals use amplitude modulation of the radio waves to transmit a signal. A typical wavelength of an AM radio wave is 3

00. 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
Physics
1 answer:
yanalaym [24]3 years ago
7 0

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 c= 3\times10^{8}\ m/s

We calculate the frequency

Using formula of frequency

c = f\times\lambda

f = \dfrac{c}{\lambda}

Put the value into the formula

f=\dfrac{3\times10^{8}}{300}

f =1\times10^{6}\ Hz

f =1\ MHz

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

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