MEDIUM

Earn 100

The speed of sound at $0 ° C$ is $331 m s^{- 1}$ . What will be the speed of sound at $20 ° C$ ?

50% studentsanswered this correctly

Important Questions on Sound

EASY

Science>Physics>Sound>Propagation of Sound

Sound travels fastest in

EASY

Science>Physics>Sound>Propagation of Sound

The speed of sound in air at NTP is

332 m / s

. If air pressure becomes four times the normal then the speed of sound waves will

EASY

Science>Physics>Sound>Propagation of Sound

Consider the following statements :
(A) The velocity of sound in air increases due to presence of moisture in it.
(R) The presence of moisture in air lowers the density of air.
In the above statements:

EASY

Science>Physics>Sound>Propagation of Sound

Two waves of sound of wavelength

1.2 m

and

1.25 m

in a medium produce

90

beats in

10 s .

The speed of sound in the medium is

EASY

Science>Physics>Sound>Propagation of Sound

Compare the speed of light with that of sound.

HARD

Science>Physics>Sound>Propagation of Sound

A boy fires a gun and another boy at a distance of 1020 m hears the sound of firing the gun 3 s after seeing its smoke. Find the speed of sound.

MEDIUM

Science>Physics>Sound>Propagation of Sound

A source of sound of frequency 600 Hz is placed inside water. The speed of sound in water is

1500 m s^{- 1}

and in air it is

300 m s^{- 1}

. The frequency of sound recorded by an observer who is standing in air is

EASY

Science>Physics>Sound>Propagation of Sound

Lightning and thunder take place in the sky at the same time and at the same distance from us. Lightning is seen earlier and thunder is heard later. Can you explain why?

EASY

Science>Physics>Sound>Propagation of Sound

Why is the velocity of sound more in steel than in water or air?

EASY

Science>Physics>Sound>Propagation of Sound

Give reasons:

The speed of sound is more during a hot summer day than a cold winter night.

EASY

Science>Physics>Sound>Propagation of Sound

Give reasons for the following:

The speed of sound in solids is more than the speed of sound in gases.

HARD