The velocity of sound in air is independent of:
Correct answer: B. Pressure
- A. Temperature
- B. Pressure
- C. Density
- D. Humidity
Explanation
Correct. In an ideal gas, the velocity of sound is given byv= squareroot (γRT/M) which shows that it depends on temperature but is independent of pressure at constant temperature.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Waves
Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
Practise Waves
1,281 free Waves MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Waves questions
Doppler effect can be observed by:
When a transverse wave passes, the particles of the medium oscillate:
There are 2 pianos playing the same note, however the vibration from one piano is 223.20 Hz and that of the other is 223.50 Hz. The beat frequency between the two tones will be?
The velocity of sound in air at NTP is 332 ms−1. The velocity of sound in vacuum is:
Two transverse travelling waves are presented by these equations:y1 = A sin(kx- ωt) and y2 = A sin(ωt−kx-theta). These two waves differ in:
The intensity level (sound level) of faintest audible intensity is: