[SOLVED] Physics - Wavelength(Gr11)

**rock candy** · February 16th 2009, 07:52 PM

What is the wavelength of 2.5 million Hz ultrasound as it travels through human tissue?
Answer[0.44 mm]

wave speed through human tissue: 1540m/s

thanks

**mr fantastic** · February 16th 2009, 08:06 PM

Originally Posted by rock candy

What is the wavelength of 2.5 million Hz ultrasound as it travels through human tissue?
Answer[0.44 mm]

wave speed through human tissue: 1540m/s

thanks

$v = \nu \lambda \Rightarrow \lambda = \frac{v}{\nu}$ .

Substitute $\nu = 2,500,000$ Hz and $v = 1540$ m/s. I get 0.616 mm.

**rock candy** · February 16th 2009, 08:16 PM

Originally Posted by mr fantastic

$v = \nu \lambda \Rightarrow \lambda = \frac{v}{\nu}$ .

Substitute $\nu = 2,500,000$ Hz and $v = 1540$ m/s. I get 0.616 mm.

thats what i got... but the answer is 0.44.. i guess the answers wrong

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