Question

What is calculated by speed of light/wavelength?

Answer 1

It is the formula for frequency of light.
`nu = c/lambda`

Explanation:

We know, the Greek letter nu `(nu)` denotes the frequency of light. The Greek letter lambda `(lambda)` denotes the wavelength and `c` denotes the speed of light.

Hence, the equation for speed of light is:

`c = lambda*nu`

For the formula you asked,

`nu = c/lambda`