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A room is at standard temperature and pressure.
a) What wavelength does a 1.5 million Hz ultrasound passes through human tissue? b) How many waves are passing through the human tissue in 1 second?
c) The ultrasound session last 1 minute. How many waves passed through the human tissue during this timeframe?
d) Which example best describes this type of wave -- water, light, spring, sound, sonic boom, pulse, pulse wave packet?
Explain your answer.
- billrussell42Lv 72 months ago
speed of sound at 0º is s = 331.3 m/s
λf = s
λ = s/f = 331.3/1.5e6 = 0.0002209 m
1.5e6 Hz means 1.5e6 waves per second
1.5e6 waves/s x 60s = 9e9 waves (9 billion)