Respuesta :

Frequency represents the number of complete oscillations in one second. it is measured in Hertz (Hz). Electromagnetic waves are waves which do not require a material media for transmission. They travel with a speed of light.
The speed (m/s) of a wave is given by  frequency (Hz) × Wavelength (m)
Speed is 300,000 km/sec or 300,000,000 m/s and the wavelength is 300,000  km or 300,000,000 m.
Frequency = speed÷ wavelength
                 = 300000000 ÷ 300000000 = 1
Therefore, the frequency of the wave is 1Hz

snehashish65

The required frequency of an electromagnetic wave is of 1 Hz.

Given data:

The wavelength of electromagnetic wave is, [tex]\lambda = 300,000 \;\rm km[/tex].

The speed of light is, v = 300,000 km/s.

The given problem is based on the concept of frequency of wave. The frequency of electromagnetic wave is termed as the number of waves passing through any point in a space. The mathematical expression for the frequency is given as,

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

Solve by substituting the values as,

[tex]f=\dfrac{300,000}{300,000}\\\\f = 1\;\rm s^{-1}\\\\f = 1\;\rm Hz[/tex]

Thus, we can conclude that the required frequency of an electromagnetic wave is of 1 Hz.

Learn more about the frequency of wave here:

https://brainly.com/question/2162587

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