What is the frequency of light with a wavelength of 20 nm
WL = V/F = 2*10^-8
3*10^8/F = 2*10^-8
F = 1.5*10^16 Hz.
fλ = v
what is the speed of light?
To find the frequency of light with a given wavelength, you can use the following formula:
Frequency (ν) = Speed of Light (c) / Wavelength (λ)
The speed of light is a constant value, approximately 299,792,458 meters per second (m/s).
First, let's convert the wavelength from nanometers (nm) to meters (m).
1 nm = 1 x 10^-9 m
So, for a wavelength of 20 nm, you would multiply 20 by 1 x 10^-9 to convert it to meters.
20 nm * 1 x 10^-9 m/nm = 2 x 10^-8 m
Now, we can substitute the values into the formula.
Frequency (ν) = 299,792,458 m/s / 2 x 10^-8 m
After dividing these numbers, the frequency can be calculated as:
Frequency (ν) ≈ 1.4989623 x 10^16 Hz
Therefore, the frequency of light with a wavelength of 20 nm is approximately 1.5 x 10^16 Hz.