The periodic alternation of sound between maximum and minimum loudness are called___________________?
Correct answer: C. beats
- A. silence zone
- B. interference
- C. beats
- D. resonance
Explanation
The repeated rise and fall of sound loudness occurs when two close frequencies interfere, producing alternating constructive and destructive interference. This phenomenon is called beats. Interference is the underlying process, but beats is the specific observable periodic alternation in loudness, so students may choose interference as the broader term.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Superposition and Interference
Superposition states that overlapping waves produce a resultant displacement equal to the algebraic sum of their individual displacements. Interference covers constructive and destructive interference, phase difference, path difference, coherent sources, and conditions for maxima and minima. It differs from diffraction, which involves spreading around openings or obstacles.
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 Superposition and Interference questions
Beats are the results of____________________?
The beats frequency (sensible) for a human car is _____________________?
In double slit experiment we observe _____________________?
When two identical traveling waves are superimposed, the velocity of the resultant wave__________________?
Silence zone takes place due to____________________?
The number of beats produced per second is equal to____________________?