Physics: What is the wavelength, in metres, of an em wave emitted by an am radio station at 70 khz?

What is the wavelength, in metres, of an em wave

Ответ:

espinosajoselyn

01.01.2022

Physics

Wavelength of an EM wave is 4285.71 meters.

Explanation:

It is given that,

Frequency of the AM radio station, $f=70\ kHz=7\times 10^4\ Hz$

We need to find the wavelength of an EM wave. The relation between frequency and the wavelength is given by :

$\lambda=\dfrac{c}{f}$

c is the speed of light

$\lambda=\dfrac{3\times 10^8\ m/s}{7\times 10^4\ Hz}$

$\lambda=4285.71\ m$

So, the wavelength of an EM wave is 4285.71 meters. Hence, this is the required solution.

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Ответ:

dakotapixler362

30.10.2022

Physics

The generally accepted standard range of audible frequencies for humans is 20 to 20,000 Hz, although the range of frequencies individuals hear is greatly influenced by environmental factors.

Answer is 1000Hz

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What is the wavelength, in metres, of an em wave emitted by an am radio station at 70 khz?

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