Physics · Wave Motion and Sound
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The speed of sound in an ideal gas depends upon:
- A
Ice
- B
Frequency and fog
- C
Temperature and density
- D
Density and amplitude
The correct statement is C. Temperature and density.
The speed of sound in an ideal gas depends on both temperature and density. In fact, the speed of sound is given by the equation:
Speed of Sound (v) = √(γ * (Pressure / Density)
where γ is the adiabatic index or ratio of specific heats, which depends on the gas, and both temperature and density are involved in this equation.
This option is incomplete and does not specify the factors that determine the speed of sound in an ideal gas.
Frequency is one of the factors that can affect the speed of sound, but "fog" is not a relevant factor in determining the speed of sound in an ideal gas.
This is the correct option. The speed of sound in an ideal gas depends on both temperature and density. In fact, the speed of sound is given by the equation:
Speed of Sound (v) = √(γ * (Pressure / Density)
where γ is the adiabatic index or ratio of specific heats, which depends on the gas, and both temperature and density are involved in this equation.
The amplitude of a sound wave can affect its intensity, but it is not a primary factor that determines the speed of sound in an ideal gas.
Tagged under Physics · Wave Motion and Sound · 2023