Physics · Wave Motion and Sound
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According to Newton's speed of sound waves depends upon:
- A
Compressibility and inertia
- B
Pressure
- C
Mass and energy
- D
Density of medium
The speed of sound in a medium is determined by a combination of the medium's rigidity (or compressibility in gases) and its density. The more rigid (or less compressible) the medium is the faster will be the speed of sound. The greater the density of a medium, the slower the speed of sound.
The speed of a sound wave depends on the properties of the medium through which it moves.
According to Newton’s equation,
V= √E/p
Where E= elastic modulus of the medium
And p= density of air
The speed of sound waves is independent of the pressure.At a constant temperature, the gas pressure has no effect on the speed of sound, since the density will increase, and since pressure and density (also proportional to pressure) have equal but opposite effects on the speed of sound, and the two contributions cancel out exactly.
Speed of sound is independent of mass and energy as well.
It also does not depend on density of medium according to Newton’s equation.
Tagged under Physics · Wave Motion and Sound · 2004