Sound
Practice Sound MCQs from Physics — Science.
A sound source produces 40 compressions and 40 rarefactions in 0.4 seconds. What is the frequency of the sound?
What is the unit of sound level intensity commonly used in acoustics?
If the amplitude of a sound wave is tripled, the intensity becomes how many times the original?
What is the function of the three tiny bones (ossicles) in the middle ear?
Which of the following remains constant as sound travels through a uniform medium at a constant temperature?
A SONAR device on a ship sends a signal to the ocean floor and receives an echo 4 seconds later. If the speed of sound in water is 1500 m/s, what is the depth of the ocean?
In longitudinal waves, the direction of vibration of particles is _______ to the direction of wave motion.
What is the wavelength of a sound wave with a frequency of 20 Hz in air where the speed of sound is 340 m/s?
If a tuning fork makes 256 vibrations in 1 second, its frequency is what?
A sound wave travels from a denser medium to a rarer medium. How does the speed change?
The persistence of hearing for a human ear is approximately how long?
What is the maximum displacement of a particle from its mean position in a wave called?
Large auditoriums use curved ceilings because sound following reflection can reach all corners. This is an application of:
Two sound waves have frequencies in the ratio 2:3. What will be the ratio of their time periods?