Answer:
The refracted wavelength = 450 nm.
Explanation:
When a ray of light goes from 1 medium to another medium with different refractive index, the frequency will be constant but the wavelength will change:
[tex]\boxed{n_1\cdot \lambda_1=n_2\cdot \lambda_2}[/tex]
where:
Given:
[tex]n_1\cdot \lambda_1=n_2\cdot \lambda_2[/tex]
[tex]1(600)=\frac{4}{3} \lambda_2[/tex]
[tex]\lambda_2=600\times\frac{3}{4}[/tex]
[tex]=450\ nm[/tex]