What is the speed of an electromagnetic wave with a frequency of 1.33x10^17hz and a wavelength of 2.25nm?

Wavelength = 2.25nm = 2.25 x 10^(-9)m  

Frequency = 1.33 x 10^17Hz  

Speed = 2.25 x 10^(-9) x 1.33 x 10^17 = 2.99 x 10^8m/s

So the answer is: 2.99 x 10^8m/s

Answer : The speed of electromagnetic wave is

Explanation : Given,

Frequency of wave =

Wavelength of wave =

Formula used :

where,

= frequency of light

= wavelength of light

c = speed of electromagnetic wave = ?

Now put all the given values in the above formula, we get:

Therefore, the speed of electromagnetic wave is