Question

A light wave has a frequency of 6 x 10^8. What is the wavelength of the light wave? (Assume the speed of light to be 3 x 10^8.)

Answer 1

ANSWER

$\begin{equation*} 0.5\text{ }m \end{equation*}$

EXPLANATION

Parameters given:

Frequency of light wave, f = 6 * 10⁸ Hz

Speed of light, c = 3 * 10⁸ m/s

To find the wavelength of the light wave, apply the relationship between speed of light and wavelength:

$\begin{gathered} c=\lambda f \\ \lambda=\frac{c}{f} \end{gathered}$

Hence, the wavelength of the light wave is:

$\begin{gathered} \lambda=\frac{3*10^8}{6*10^8} \\ \lambda=0.5\text{ }m \end{gathered}$

That is the answer.