Question

Order the waves from shortest wavelength (1) to longest wavelength (4).

Gamma rays:

Microwaves:

Radio:

Visible light:

Answer 1

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

Gamma rays, visible light, microwaves, radio waves

Answer 2

Different forms of electromagnetic waves are arranged according to increasing wavelength in the electromagnetic spectrum.

• Gamma rays have the shortest wavelength lesser than 10-¹²m. They lie in the extreme left of the spectrum.
• Visible light comes next with wavelength within 400 - 750nm. It lies n early at the centre of the spectrum.
• Microwaves are next with a wavelength range of 25um - 1mm.
• Radio waves have the largest wavelength of over 1mm. They lie in the extreme right of the spectrum.