What is the wavelength of a 2.4 MHz ultrasound wave traveling through aluminum? Assume that the speed of sound in aluminum is 5100 m/s.
frequency = 2.4 Mhz
= 2400000hz
v = 5100 m/s
λ = v/f
5100/2400000
= .002125
m = 2.212500 mm
What frequency of electromagnetic wave would have the same wavelength as the ultrasound wave of part A?
v =299, 792, 458
λ= 2.1 mm
= .002125 m
f = v/λ
= 299, 792, 458/ .002125
=1410788037
= 14 hz
= 1.4 x 1011
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