We think about how we compute the velocity of sound in air. Because the velocity of sound is a different medium. Usually, the velocity of sound is higher
in solid. The hypersonic and supersonic are measured with the speed of sound. We definitely
know about the velocity of sound in air because it is essential very measurement.
Newton thinks about how to compute the speed of sound in air.
Already the velocity of the longitudinal wave is found. Newton thought that the
formula of the velocity of a longitudinal wave was compared to Boyle’s law.
We know that sound waves are longitudinal and when they
propagate in air compression and rarefaction are formed. Sound propagates in
air, and the formation of compression and rarefaction is very slow. This slow
formation process is called as isothermal in nature.
Consider air molecules, assume the temperature of the
air is constant, pressure increases and volume decreases. Here we can
understand the air molecules to form an ideal gas.
But this theoretical value is definitely changed with
practical value. Because of experimentally velocity of sound is measured in air
at 0oC. So the experimental value is up to 16% more than the theoretical
value. The high difference indicates the best method of measurement of the velocity
of sound is the experimental one.
HOW TO COMPUTE THE SPEED OF SOUND IN AIR BY NEWTON’S METHOD
Reviewed by knowledge people creators
on
April 16, 2019
Rating:
Reviewed by knowledge people creators
on
April 16, 2019
Rating:
