Question

What is the frequency of a red light with a wavelength of 650 nm?

Answer 1

approximately 4.61 x 10^14 Hz

Answer 2

It would be approximately 4.61 x 10^14 Hz

Step-by-step explanation:

Well if a narrow beam that is at a wavelength of approximately
`650 nm (650 x 10^(-9)m)` would correspond to a frequency of approximately
`6.61 x 10^14 Hz` which would make it be a few hundred terahertz.

Hope this helps :)