Question

What is the frequency of chlorine’s spectral light if it’s wavelength is 560nm?

Answer 1

We know that,
Frequency =
`\frac{\text{speed of light}}{wavelenght}`

Given: wavelength = 560 nm = 560 X 10^-9 m
Also we know that, speed of light = 3 X 10^8 m/s

∴ Frequency =
`\frac{\text{3X10^8}}{560X10^-9}`
= 5.357 X 10^14 Hz.

Thus, frequency of chlorine’s spectral light is 5.357 X 10^14 Hz.