Discover a world of knowledge at Westonci.ca, where experts and enthusiasts come together to answer your questions. Get immediate and reliable solutions to your questions from a community of experienced experts on our Q&A platform. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

A certain electromagnetic wave has a wavelength of 6.25 x 10-7m. What is the
frequency of the wave?


Sagot :

Answer: 4.80 * 10¹⁴s⁻¹

Explanation:

Speed = Frequency * Wavelength

So:

Frequency = Speed/ Wavelength

Speed of light = 3 * 10⁸ m/s

Frequency = (3 * 10⁸ m/s) / (6.25 x 10⁻⁷m)

= 4.80* 10¹⁴hz

= 4.80 * 10¹⁴s⁻¹

The frequency of the electromagnetic wave is  4.8 x 10¹⁴s⁻¹

In an Electromagnetic wave, The frequency , speed and wavelength of an are related by the formula

λ=  c/f

where

λ = wavelength in metres, m.

c= speed of light  in metres per sec, m/s

f= frequency in per seconds or hertz,( s⁻¹ , Hz)

Given that Wavelength of the electromagnetic wave is 6.25 x 10-7m.

We know that speed of light is 3 x 10⁸ m/s

Substituting the values into the equation becomes

f  =  c/  λ

f= 3 x 10 ⁸m /s  / 6.25 x 10⁻⁷ m  = 4.8 x 10¹⁴s⁻¹

Hence, The frequency of the electromagnetic wave is  4.8 x 10¹⁴s⁻¹

Learn more: https://brainly.com/question/22939859