What is the lowest frequency of electromagnetic radiation?

radio
The lowest frequency portion of the electromagnetic spectrum is designated as “radio,” generally considered to have wavelengths within 1 millimeter to 100 kilometers or frequencies within 300 GHz to 3 kHz.

What are the type of EMW from highest frequencies to lowest frequencies?

In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves. Microwaves (like the ones used in microwave ovens) are a subsection of the radio wave segment of the EM spectrum.

What are low frequency electromagnetic waves of radiant energy?

EMR of visible or lower frequencies (i.e., visible light, infrared, microwaves, and radio waves) is called non-ionizing radiation, because its photons do not individually have enough energy to ionize atoms or molecules or break chemical bonds.

What type of radiation has the lowest frequency the highest frequency?

Red light has the lowest frequencies and longest wavelengths, while violet has the highest frequencies and shortest wavelengths. Blackbody radiation from the Sun peaks in the visible part of the spectrum but is more intense in the red than in the violet, making the Sun yellowish in appearance.

Which of the following frequencies has the lowest energy?

Radio waves have photons with the lowest energies. Microwaves have a little more energy than radio waves. Infrared has still more, followed by visible, ultraviolet, X-rays and gamma rays.

Which among the EM waves has the highest energy?

Gamma rays
Gamma rays have the highest energies and shortest wavelengths on the electromagnetic spectrum.

Which is correctly arranged from lowest to highest energy?

The order of energy from least to greatest is: microwaves, infrared, red, ultraviolet, and gamma waves.

Which electromagnetic has lowest energy?

Radio waves
Radio waves have photons with the lowest energies. Microwaves have a little more energy than radio waves. Infrared has still more, followed by visible, ultraviolet, X-rays and gamma rays.

What is the frequency range of radio waves?

Electromagnetic radiation with frequencies between about 5 kHz and 300 GHz is referred to asradio frequency (RF) radiation. Radio frequencies are divided into ranges called “bands,” such as“S-band,” “X-band,” etc. Radio telescopes can be tuned to listen for frequencies within certainbands.

What are the effects of radio waves on human health?

Despite the advent of numerous additional research studies on RF fields and health, the only established adverse health effects associated with RF field exposures in the frequency range from 3 kHz to 300 GHz relate to the occurrence of tissue heating and nerve stimulation (NS) from short-term (acute) exposures.

What happens to electromagnetic radiation when it leaves its source?

As electromagnetic radiation leaves its source, it spreads out, traveling in straight lines, as if it were covering the surface of an ever expanding sphere. This area increases proportionally to the square of the distance the radiation has traveled.

What is the maximum level of exposure to RF waves?

These levels shall not be exceeded. The purpose of this code is to specify maximum levels of human exposure to RF fields at frequencies between 3 kHz and 300 GHz, to prevent adverse human health effects in both controlled and uncontrolled environments.