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1) An ultrasound wave has frequency 100 kHz and wavelength (in air) of 3.5mm. What is the speed of these ultrasonic waves?
2) 3mm wavelength radar waves have speed 3.00 x 10(8) ms(-1) (as do all electromagnetic waves in air) what is their frequency?
3) Ultrasound is a longitudinal wave motion; radar waves are transverse. Explain the terms longitudinal & transverse.© BrainMass Inc. brainmass.com March 6, 2023, 1:54 pm ad1c9bdddf
There is a relation who connects the wavelength, frequency and velocity of waves.
nu * lambda = velocity
nu is the frequency and lambda is the wavelength.
from this, the velocity = 100kHz * 3.5mm
= 100*10^3 * 3.5 * 10^-3
= 350 ...
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