During a time interval of exactly one period of vibration of a tuning fork, the emitted sound travels a distance:
Correct answer: D. One wavelength in air
- A. Equal to the length of the tuning fork
- B. About 330m
- C. Twice the length of the tuning fork
- D. One wavelength in air
Explanation
In one period T the wave travels one wavelength λ = vT. So the distance covered equals one wavelength in the medium (air).
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
A string of length E can maintain the stationary waves of wavelength λ given by:
The distance between the node and the next anti-node is:
If the speed of a transverse wave on a stretched string of length 1 m is 60 m/s, what is the fundamental frequency of vibration?
Car "A" has a siren sounding a note of 540 Hz. A listener in car "B" hears a note of 544 Hz. Both move in the same direction. One concludes that:
When two identical waves move in the same direction, they give rise to:
At the open end of an organ pipe: