Question

How do the altering factors like wavelength and frequency affect the way we see and hear? How do lenses and walls alter the way we see certain lights and hear certain sounds?

Answer 1

1-If we increase the wavelength then velocity increases so that light seen from large distance like red ..then sound also hear from large distance......

If we increase the frequency it disperse character increases so that can't be seen and hear from large distance like blue light.

2- Lenses provides shifting of image so if any person have not form proper image on retina so with the help of lens we can correct it.

While in case of sound walls plays great role on producing echo as well as attenuation of sound .