ANSWER
[tex]\begin{equation*} 0.5\text{ }m \end{equation*}[/tex]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:
[tex]\begin{gathered} c=\lambda f \\ \lambda=\frac{c}{f} \end{gathered}[/tex]Hence, the wavelength of the light wave is:
[tex]\begin{gathered} \lambda=\frac{3*10^8}{6*10^8} \\ \lambda=0.5\text{ }m \end{gathered}[/tex]That is the answer.
