Sound travel from air to water. the velocity of sound waves in air is 332m/s and wavelength is 2m. if the wavelength of sound in water is 850cm, find its velocity in water?

1 Answer
A08
Dec 16, 2016

#1411ms^-1#

Explanation:

The applicable expression is
#v=n lambda#
where #v# is velocity of sound, #n and lambda# are the frequency and wavelength of sound.
Using the given quantities for air
#332=n xx2#
#=>n =332/2=166Hz#

For water
#v_"water"=n xxlambda_"water"#
#=>v_"water"=166 xx8.5# (convert wavelength in to meters)
#=>v_"water"=166 xx8.5=1411ms^-1#

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