two vibrating sources emit waves in the same elastic medium. the first source has a frequency of 25 hz, while the frequency of the second source is 75hz. waves from the first source have a wavelength of 6.9 m. they reflect from a barrier back into the original medium, with an angle of relfection of 25 degrees. waves from the second source refreact into a different medium with an angle of incidence of 35 degrees. the speed of the refracted waves is observed to be 96 m/s.
wat is the is the speed of the reflected waves from the first source in the orignal medium?
The Attempt at a Solution
you cannot tell since it has most likely changed speed after refraction?
Im doing a correspondance course and learning out of a book is retarded.
Can someone explain this to me please?