List of top Physics Questions on Traveling Sound Waves

A sound absorber attenuates the sound level by 20 dB. The intensity decreases by a factor of
A source of sound is moving towards a wall with a speed of 20 $ms^{-1}$ The frequency of the sound produced by the source is 400 Hz. If the speed of the sound is 340 $ms^{-1}$, the beat frequency heard by a person standing near the wall is
A person standing between two parallel hills fires a gun. He hears the first echo after 1.5 sec and second echo after 2.5 sec. If the speed of a sound is 332 $ms^{-1}$, the distance between the hills is
The velocity of sound in air is 330 $ms^{-1}$. To increase the apparent frequency of the sound by 50%, the source should move towards the stationary observer with a velocity equal to}
If the total absorption of a hall is doubled, the reverberation time will
The speed of sound in air is $340~ms^{-1}$. The frequency of the fundamental note emitted by a pipe of length 2 m closed at one end is
To have a good sound effect inside a hall
A source of sound producing wavelength of $50 \text{ cm}$ is moving away from stationary observer with $\frac{1}{5}\text{th}$ speed of sound. The wavelength of the sound heard by the observer is
A source of sound producing wavelength of $50 \text{ cm}$ is moving away from stationary observer with $\frac{1}{5}\text{th}$ speed of sound. The wavelength of the sound heard by the observer is
To have a good sound effect inside a hall
If the third harmonic of a closed pipe is in resonance with the fourth harmonic of an open pipe, then the ratio of the lengths of the closed and open pipes is:
A sound wave has a frequency of 500 Hz and wavelength 80 cm. How long will it take to travel 1 km?
Two open organ pipes A and B of length 22 cm and 22.5 cm respectively produce 2 beats per sec when sounded together. The frequency of the shorter pipe is:
Sound can move in:
What is the relation between sound velocity ($ V $), frequency ($ \gamma $), and wavelength ($ \lambda $)?
The engineer of a train blows the train whistle as he approaches a crossing. A few moments later, he hears an echo from the whistle. The engineer hears the echo of the whistle because of
In SONAR, we use :
The minimum distance between source and reflecting surface for echo is :
If time period is \(0.02\) second, then frequency will be :
An open organ pipe has a fundamental frequency of 300 Hz. The first overtone of a closed organ pipe has the same frequency as the first overtone of organ pipe. How long is each pipe?
Ratio of wavelength of first two modes of open pipe