Question

One of the light waves produced when hydrogen is energized has a wavelength of 4.105 x10^-7 m. What is the frequency of this light?​

Answer 1

7.3 x 10¹⁴Hz

Step-by-step explanation:

Answer 2

7.3 x 10¹⁴Hz

Step-by-step explanation:

Given parameters:

Wavelength = 4.105 x 10⁻⁷m

Unknown:

Frequency of the light =?

Solution:

The frequency, wavelength and speed of a wave are related using the expression below;

C = f λ

C is the speed of light = 3 x 10⁸

f is the frequency

λ is the wavelength

3 x 10⁸ = f x 4.105 x 10⁻⁷

f =
`(3 x 10^(8) )/(4.105 x 10^(-7) )` = 7.3 x 10¹⁴Hz