Question

What is the frequency of a red light with a wavelength of 6.98 x 10^-6

Answer 1

Answer:

frequency of light = $4.2\times 10^{-13}$

Explanation:

we know that relation between frequency and wavelength of light is

frequency × wavelength = speed of light.

therefore frequency = $\frac{c}{wavelength}$

                                  = $\frac{3\times 10^{8}}{6.98\times 10^{-6}}$

                                  =$4.2\times 10^{-13}$