When light rays travel from air into glass or from air into water,it bends towards normal. This is because the speed of light rays decrease while travelling from air into glass or water. Case 2: When light rays travel from optically denser medium to rarer medium then they bend away from ...
How does the wavelength of the wave change (if it does change)? If a sound has a frequency of 1200 Hz and the speed of sound of 344 m/s, what is the wavelength (meters)? Does changing the frequency of a wave on a rope affect wavelength? Does wavel...