Sound

For a wave, wavelength divided by the time period is equal to_____.

Speeds greater than the speed of sound in the air are known as _____.

Which is an example of a mechanical wave?

The loudness of sound coming from the busy traffic is____________.

Loudness of sound depends on:

The velocity of sound in moist air is more than in dry air because the moist air has—

Echo sounding is the technique applied to-

Which one of the following sounds cannot be heard by a human ear?

What is the maximum limit of sound intensity in decibel units beyond which a person cannot hear?

Hartley Oscillator is commonly used in:

Cosmic wave is caused by _____.

Ultrasonic sound has the frequency of _____.

The pitch of the voice of a woman is in general _____.

A sinusoidal transverse wave is travelling in string. Any point of the string moves in:

Ultrasonic sounds are the sounds which have frequencies?

The waves used in radar systems are ____ waves.

The audible range of sound for an average adult human being is _.

Which of the following creatures use ultrasonic sound to catch their prey?

Sound waves cannot travel through which of the following?

The audible range of sound for human beings is from: