If the velocity of sound in a certain metal is 510 meters per second and the wavelength is 20, what is the frequency of the wave?
can any body give me the formula for this aswell
2006-11-16 00:22:27 · 5 answers · asked by cetinnovations 1 in Science & Mathematics ➔ Physics
What happens to the wave length and frequency of a wave if the velocity increases?
2006-11-16 00:24:22 · update #1
we have wavelength= velocity/frequency
hence freq= velocity/wavelength
freq= 510/20= 25.5 sec^(-1)
if velocity increases then the product of freq and wavelength increases.
2006-11-16 00:51:23 · answer #1 · answered by Mysterious 3 · 0⤊ 0⤋
Lay out the total distance traveled in one second (510 meters) and determine how many waves 20 meters long will fit in the total distance (510/20 = 25.5 waves per second, the frequency of the waves!). Use the same reasoning for the rest of your question. Formulas are shortcuts but a physical picture aids understanding. plug in l, v and f (length, velocity and frequency) from your description to derive the formula. Good luck.
2006-11-16 09:33:28 · answer #2 · answered by Kes 7 · 0⤊ 0⤋
Depends on how you get the velocity to increase. Either the wavelength increases, or the frequency increases, or both.
2006-11-16 08:42:50 · answer #3 · answered by ? 6 · 0⤊ 0⤋
wavelength*frequency=velocity
510*frequency=20
frequency=20/510
2006-11-16 08:34:22 · answer #4 · answered by Dupinder jeet kaur k 2 · 0⤊ 0⤋
V = wave lengh * frequency
Frequency = V/wave lenght
2006-11-16 09:26:05 · answer #5 · answered by Juan D 3 · 0⤊ 0⤋