Question

The wavelength of a light wave as it passes through a material is 657.61 nm with a speed of 232,536,355.7 m/s. What is the frequency of this wave?

Answer 1

Given:

The wavelength of light is

`\begin{gathered} \lambda\text{ = 657.61 nm} \\ =657.61*10^(-9)\text{ m} \end{gathered}`

The speed is v = 232536355.7 m/s

Required: The frequency of the wave.

Explanation:

The frequency can be calculated by the formula

`f=(v)/(\lambda)`

On substituting the values, the frequency will be

`\begin{gathered} f=\text{ }(232536355.7)/(657.61*10^(-9)) \\ =3.536*10^(14)\text{ s} \end{gathered}`

Final Answer: The frequency of the wave is 3.536e14 s