Question

electromagnetic radiation with maximum wavelength
1. ultraviolet
2. x rays
3. infrared
4. fm radio waves ​

Answer 1

Answer:

2) x rays may be right

second choice ultraviolet rays

Answer 2

Answer:4. Fm radiowaves

Explanation:

Radio waves have the longest wavelengths ranging from 1mm to 100 km. They are used for long distance communication. They lie at the extreme right end of the electromagnetic spectrum

It is followed by infrared > UV > x-rays

Those at the extreme left will have the lowest wavelength as low as an Angstrom (gamma rays 10^-10 m)

Spped of light c = frequency × wavelength

This means larger the wavelength, lesser is the frequency

Radio waves having longest wavelength will have the lowest frequency (conversely x-rays have highest frequency)

Also higher the frequency greater will be its energy as given by E = hv where E is energy, h is Planck's constant (6.636×10^-34 Js) and v is frequency.

Thus x-rays will have the highest energy while radiowaves will have the lowest energy though they may have the highest wavelength