Question

The electro-magnetic spectrum consists of both visible light and invisible light like X-rays, IR.,
U.V rays, microwaves and radio waves. Among these, the radiation with highest wave-length is___
A) X-rays
B)U.V rays
C)I.R
D) Radio-waves
​

Answer 1

Radio waves has the highest wavelength, they have very low energy

Answer 2

The electromagnetic spectrum consists of both visible light and invisible light like X-rays, IR., U.V rays, microwaves, and radio waves. Among these, the radiation with the highest wavelength is D) Radio-waves.

About electromagnetic spectrum:

• The range of electromagnetic radiation's frequencies, along with the corresponding photon energies and wavelengths, is known as the electromagnetic spectrum.
• The complete distribution of electromagnetic radiation according to frequency or wavelength is known as the electromagnetic spectrum.
• Despite the fact that all electromagnetic waves have a wide range of frequencies, wavelengths, and photon energies, they all move at the speed of light in a vacuum.
• The parts of the electromagnetic spectrum are referred to as gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves, from highest to lowest energy.
• A subset of the radio wave category of the electromagnetic spectrum in the microwave range, such as those found in microwave ovens.

About radiowaves:

• In the electromagnetic spectrum, radio waves have the longest wavelengths.
• They range in size from a football's length to our planet's size.
• In the late 1880s, Heinrich Hertz demonstrated the existence of radio waves.
• The longest wavelengths in the electromagnetic spectrum are found in radio waves, which typically have frequencies of 300 gigahertz or less.

#SPJ3