Question Bank

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?

Sound is a form of energy produced by what?

If a tuning fork makes 256 vibrations in 1 second, its frequency is what?

Which of the following increases when sound becomes louder?

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:

Which factor does NOT affect the speed of sound in air?

Two sound waves have frequencies in the ratio 2:3. What will be the ratio of their time periods?

The sound of a whistle is high-pitched because it has high:

Which of the following can produce infrasonic sound?

What is the distance between a compression and its adjacent rarefaction in a wave with wavelength 'L'?

Galton's whistle is used to produce which type of sound?

The property of sound by which we can distinguish a sharp sound from a grave or dull sound is called:

Calculate the time taken by a sound wave of frequency 1000 Hz and wavelength 0.34 m to travel a distance of 680 m.

Which sound wave property changes when the source moves relative to the observer (Doppler Effect)?

A stethoscope works on the principle of:

In a wave, if the energy is transferred from left to right, the particles of the medium vibrate up and down. This describes a:

The speed of sound in air is 'V'. If the absolute temperature of the air is doubled, the new speed will be: