Question

Electromagnetic radiation has been detected with a frequency as low as 0.01 hertz. What is the wavelength of such a wave? What type of wave might this be?

Answer 1

The speed of the wave is 3 *
`10^{10` m and this may be radio waves.

The energy that moves through space as electric and magnetic waves is referred to as electromagnetic radiation. The electromagnetic spectrum is made up of the various frequencies and wavelengths that this energy can exhibit. Radiation of all frequencies is included in the spectrum, including microwaves, low-frequency radio waves, higher-frequency infrared, visible light, ultraviolet, X-rays, and gamma rays.

We know that;

c = λf

c = speed of light

f = frequency

λ = wavelength

λ = c/f

λ = 3 *
`10^8`/0.01

= 3 *
`10^{10` m