Question

Which of the following describes the relationship between frequency and wavelength?

As frequency increases, wavelength increases.

As frequency decreases, wavelength decreases.

As frequency increases, wavelength decreases.

As frequency increases, wavelength is unaffected.

Answer 1

The answer is C. As frequency increases, wavelength decreases
But this is different for refraction. During refraction f remains constant as velocity and wavelength change
You can relate them by v=f x wavelength

Answer 2

3rd one as f is inversely proportional to wavelength