Science MCQ

The sound waves travel faster ______.

The maximum speed of vibrations which produces audible sound will be in ______.

• seawater

• ground glass

• dry air

• Human blood

A musical instrument is producing continuous note. This note cannot be heard by a person having a normal hearing range. This note must then be passing through ______.

Sound travels in air:

Which of the following vibrates when a musical note is produced by the cymbals in a orchestra?

The speeds of sound in four different media are given below. Which of the following is the most likely speed in ms-1 with which the two underwater whales in a sea can talk to each other when separated by a large distance?

Sonar is a device that uses to measure the distance, direction and speed of the underwater objects.

The frequency of source of sound is 60 Hz. Then the number of vibrations in a minute will be ………………..

The part of ear that turns pressure variations into electrical signals is .

To hear an echo, the minimum distance of the obstacle from the source of sound must be ………………

The elastic property of medium is a factor of …………. medium.

The speed of sound in a gaseous medium depends on …………….

SI unit of wavelength is ……………………………..

The relation between speed, frequency and wavelength is ………………

When temperature increases the speed of sound

The distance between two adjacent crest is called …………………..

Sound travels in air as ……………..wave.

………………. is a general term for the distinguishable characteristic of wave

of sound depends on the amplitude of the wave,

The frequency greater than 20,000 Hz is ………………. sound.

Human beings cannot hear …………………

In longitudinal waves, the particle vibrates in a ………………….. direction of propagation.

Sound cannot travel through …………………

Which of the following is a non-mechanical wave?