What are the longest waves in the electromagnetic spectrum?

Radio waves, infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays are all types of electromagnetic radiation. Radio waves have the longest wavelength, and gamma rays have the shortest wavelength.

How many waves are in the electromagnetic spectrum?

The EM spectrum is generally divided into seven regions, in order of decreasing wavelength and increasing energy and frequency. The common designations are: radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma rays.

What are the most dangerous waves in the electromagnetic spectrum?

Gamma rays: These are the most energetic and dangerous form of electromagnetic waves. Gamma rays are a type of harmful radiation. Typical size: 0.000001 nanometers (the width of an atomic nucleus).

Which has the longest wavelength which has the highest frequency?

Gamma rays

Is the electromagnetic spectrum infinite?

In general the frequency spectrum for Electromagnetic (e.g light, radio, etc) is continuous and thus between any two frequencies there are an uncountable infinity of possible frequencies (just as there are an uncountable number of numbers between 1 and 2).

IT IS INTERESTING:  Frequent question: How do you make an electromagnet weaker?

What are the 7 types of electromagnetic spectrum?

The electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays.

What are the 7 types of waves?

Though the sciences generally classify EM waves into seven basic types, all are manifestations of the same phenomenon.

  • Radio Waves: Instant Communication. …
  • Microwaves: Data and Heat. …
  • Infrared Waves: Invisible Heat. …
  • Visible Light Rays. …
  • Ultraviolet Waves: Energetic Light. …
  • X-rays: Penetrating Radiation. …
  • Gamma Rays: Nuclear Energy.

Which waves can humans see?

Visible light waves are the only electromagnetic waves we can see. We see these waves as the colors of the rainbow. Each color has a different wavelength. Red has the longest wavelength and violet has the shortest wavelength.

What is the most dangerous frequency?

The most restrictive limits on whole-body exposure are in the frequency range of 30-300 MHz where the human body absorbs RF energy most efficiently when the whole body is exposed.

Which color has the highest energy?


Which wave has the highest period?

The electromagnetic spectrum ranges from gamma (γ) radiation, which has the shortest wavelength, highest frequency, and greatest energy, to radio waves, which has the longest wavelength and lowest frequency and energy. Ultraviolet light (UV) is divided into three regions: UV A, wavelength = 400 – 320 nm.

What color has the least energy?


What color has the shortest wavelength?

violet light

What color of light has the highest frequency?


What is the electromagnetic spectrum simple definition?

The Electromagnetic Spectrum. The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes – the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation.

IT IS INTERESTING:  Your question: What are the effects of EMF?

Who discovered the electromagnetic spectrum?

James Clerk Maxwell

A magnetic field