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Arrange the following electromagnetic wave in the order of their increasing wavelength:

(a) γ- rays

(b) Microwaves

(c) X-rays

(d) Radio waves

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#### Solution

The ranges of electromagnetic waves are given below:

(a)y-rays = <10ˉ³ nm

(b) Microwaves = 0.1 m to 1 mm

(c) x-rays = 1 nm to 10ˉ³ nm

(d) Radio waves = >0.1 m

Electromagnetic waves in the order of their increasing wavelength are

(a)y-rays

(b) x-rays

(c) Microwaves

(d) Radio waves

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