2007-03-25 05:25:23 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Physics
sound wave
2007-03-25 05:32:38 · answer #1 · answered by Mimi 3 · 0⤊ 2⤋
velocity = wavelength x frequency
wavelength = velocity / frequency
v of sound waves in ar = 340 metres per sec
v of E.M wave = 3 x 10^8
wavelength sound = 340 / freq
wavelength EM = 3 x 10^8 / freq
as freq is the same for both they are both divided by the same number. As the speed of the EM wave is larger there is more speed units per unit freq and so that answer will be larger.
The EM wave will have the longer wavelength.
2007-03-25 12:35:10 · answer #2 · answered by Maureen 3 · 0⤊ 0⤋
Well, wavelength equals the speed of the wave divided by the frequency. If the frequencies are constant, the one with the larger speed of the wave would have the larger wavelength.
I'll let you figure the rest out.
2007-03-25 12:33:48 · answer #3 · answered by sunshine 3 · 0⤊ 0⤋
Electromagnetic information propagates at the speed of light. In this case EM has a much larger wavelength.
2007-03-25 14:47:35 · answer #4 · answered by Anonymous · 0⤊ 0⤋
speed = freq. X wavelength
speed of sound = 340m/s
speed of em wave = 3x10^8m/s
speed/freq = wavelength
freq is constant in this case so the greater the speed, the greater the wavelength.
2007-03-25 12:42:05 · answer #5 · answered by mac_eleven 3 · 0⤊ 0⤋
a 1khz electrical wave would be 186 miles long. A 1khz sound wave would be about 13 inches long.
2007-03-25 16:04:27 · answer #6 · answered by Nomadd 7 · 0⤊ 0⤋