Answer:
[tex]\lambda=56.5cm[/tex]
Explanation:
Wavelength is calculated as:
[tex]\lambda=\frac{V}{f}[/tex]
Replacing the given values:
[tex]\lambda=\frac{345}{610}[/tex]
[tex]\lambda=0.565m[/tex]
Converting the result into cm:
[tex]\lambda=56.5cm[/tex]