List of top Physics Questions on Sound Wave asked in AP ECET Ceramic Tech

In a closed hall of volume \(5000\ \text{m}^3\), the total absorption of the interior surfaces is \(200\) metric sabin. The reverberation time is
Two identical piano wires, when tuned to a fundamental frequency of \(400\ \text{Hz}\), produce no beats. One wire is then slightly tightened, and the beat frequency heard is \(2\ \text{Hz}\). What is the new fundamental frequency of the tightened wire?
A source of sound of frequency \(500\ \text{Hz}\) is moving towards an observer with velocity \(30\ \text{m/s}\). The speed of sound is \(330\ \text{m/s}\). The frequency heard by the observer will be
In acoustics, “Noise” is generally characterized by
If the volume of a room is doubled and the total absorption is halved, the reverberation time will
The beats are produced by two sound sources of same amplitude and of nearly equal frequencies. The maximum intensity of beats will be {
A siren emitting sound of frequency \(800\text{ Hz}\) is going away from a static listener with a speed of \(30\text{ m/s}\). Frequency of sound heard by the listener is \((\text{Velocity of sound in air}=340\text{ m/s})\)
The beats are produced by two sound sources of same amplitude and of nearly equal frequencies. The maximum intensity of beats will be {
A siren emitting sound of frequency \(800\text{ Hz}\) is going away from a static listener with a speed of \(30\text{ m/s}\). Frequency of sound heard by the listener is \((\text{Velocity of sound in air}=340\text{ m/s})\)