Two tuning forks produces N beats. If one of these tuning forks has the frequency f, then the frequency of the other would be:
Correct answer: D. N+f
- A. N-f
- B. N/f
- C. N*f
- D. N+f
Explanation
When two tuning forks with slightly different frequencies are sounded together, they produce beats, which are periodic variations in sound intensity. The number of beats per second is equal to the difference in frequency between the two tuning forks. Let's assume the frequency of one tuning fork is f. The other tuning fork must have a frequency that is different by N from the first tuning fork. Therefore, the frequency of the other tuning fork would be f+N. Hence, the correct answer is N+f.
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 stationary wave, the distance between adjacent nodes is equal to:
A point source broadcasts sound into a uniform medium. If the distance from the source is tripled how does the intensity change?
Speed of the sound, v, in a medium of elastic modulus E and density d is given by:
The density of oxygen is 16 times the density of hydrogen. If the speed of sound in oxygen is v, then what is the speed of sound in hydrogen?
When the anti nodes are all at their extreme displacements:
SI Unit of the wavelength is?