write newton's formula for the speed of sound in air. what was wrong with this formula ?what correction made by laplace in this formula?
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c=√p/p whereby;c=speed
p=pressure acting on the sound
p=density of medium
The law states that in mediums of equal density & elastic force(the medium's pressure in Pascals,or Newtons over area measured in meters squared),all pulses are equally swift.
The formula had a loop hole in that these mediums easily deforms when the forces are applied due to sound waves is being attenuated and absorbed when passing through solids that are easily deformed when force is applied.
Laplace's correction to Newton's formula was that isothermal conditions were to prevail when sounds travels through air,Newton has applied Boyle's law to the changes in pressure and volume.
p=pressure acting on the sound
p=density of medium
The law states that in mediums of equal density & elastic force(the medium's pressure in Pascals,or Newtons over area measured in meters squared),all pulses are equally swift.
The formula had a loop hole in that these mediums easily deforms when the forces are applied due to sound waves is being attenuated and absorbed when passing through solids that are easily deformed when force is applied.
Laplace's correction to Newton's formula was that isothermal conditions were to prevail when sounds travels through air,Newton has applied Boyle's law to the changes in pressure and volume.
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16
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hope its help uh....
it is the Newton's velocity of sound in air
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