A wave travels from air medium to water medium without missing energy and the wave is passed on perfectly. the changing quantity is the... a. speed travel b. frequency c. period d. amplitude
cingcang
The changing quantity is the...a. speed travel
(v in air) / (v in water) = (n in water) / (n in air)
(v in air) / (v in water) = (n in water) / (n in air)