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What are the Characteristics of electromagnetic radiations?

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Characteristics of electromagnetic radiations: 

Wavelength: It may be defined as the distance between two neighbouring crests or troughs of wave as shown. It is denoted by λ. 

Frequency (ν): It may be defined as the number of waves which pass through a particular point in one second.

Velocity (v): It is defined as the distance travelled by a wave in one second. In vacuum all types of electromagnetic radiations travel with the same velocity. Its value is 3 x 108 m sec-1. It is denoted by v

Period :  Total time taken by wave to travel 1 wavelength 'T'

 

Velocity = frequency x wavelength c = νλ

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