Question

An electromagnetic wave is produced by charged particles vibrating at a rate of 3.9 x 10^8 vibrations per second. the electromagnetic wave is classified as

Answer 1

The given electromagnetic wave is a radio wave.

Step-by-step explanation:

Rate of vibration of the particle or frequency of the electromagnetic wave:

frequency =
`\\u=3.9* 10^8` vibrations per second

Wave length of the electromagnetic wave will be given by:

`\lambda =(c)/(\\u)`

`\lambda =(3* 10^8 m/s)/(3.9* 10^8)=0.769 m`

The wavelength of of the electromagnetic wave is lying in the range of 1 mm to 100 km that is radio wave.

Hence ,the given electromagnetic wave is a radio wave.