All the known radiations from a big family of electromagnetic waves which stretch over a…
Physics · Class 12 · CBSE — Electromagnetic Waves
All the known radiations from a big family of electromagnetic waves which stretch over a large range of wavelengths. Electromagnetic wave include radio waves, microwaves, visible light waves, infrared rays, UV rays, X-rays and gamma rays. The orderly distribution of the electromagnetic waves in accordance with their wavelength or frequency into distinct groups having widely differing properties is electromagnetic spectrum.
The decreasing order of wavelength of infrared, microwave, ultraviolet and gamma rays is
- microwave, infrared, ultraviolet, gamma rays
- gamma rays, ultraviolet, infrared, microwave
- microwave, gamma rays, infrared, ultraviolet
- infrared, microwave, ultraviolet, gamma rays.
Answer
(A) microwave, infrared, ultraviolet, gamma rays
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