Speed of the sound, v, in a medium of elastic modulus E and density d is given by:
Correct answer: D. v2 = E/d
- A. V = E/d
- B. V = E*d
- C. v2 = E*d
- D. v2 = E/d
Explanation
Explanation:we can see that the speed of sound in a medium is given by the square root of the ratio of its elastic modulus to its density: v = sqrt(E/d)Taking the square of both sides gives:v^2 = E/dSo, the equation v^2 = E/d gives the speed of sound in a medium in terms of its elastic modulus and density.
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
In a periodic wave, the distance between a crest and the next consecutive trough is 15 cm. What is the wavelength of the wave?
Two pulses move in opposite directions on a string and are identical in shape except that one has positive displacements of the elements of the string and the other has negative displacements. At the moment the two pulses completely overlap on the string, what happens?
Pitch depends upon:
A point source broadcasts sound into a uniform medium. If the distance from the source is tripled how does the intensity change?
In a stationary wave, the distance between adjacent nodes is equal to:
Two tuning forks produces N beats. If one of these tuning forks has the frequency f, then the frequency of the other would be: