EASY
Earn 100

The amount of sound energy passing each second through unit area is called the of sound.

50% studentsanswered this correctly

Important Questions on Sound

MEDIUM
Science>Physics>Sound>Production of Sound
When a tuning fork [vibrating] is held close to the ear, one hears a faint hum. The same [vibrating tuning fork] is held such that its stem is in contact with the table surface, then one hears a loud sound. Explain.
MEDIUM
Science>Physics>Sound>Production of Sound
The pitch of a sound wave depends upon which one of its following characteristics?
EASY
Science>Physics>Sound>Production of Sound
Pitch of the sound depends on
EASY
Science>Physics>Sound>Production of Sound
A bomb blasts on moon. Its sound will be heard on earth after
EASY
Science>Physics>Sound>Production of Sound
A pendulum vibrates with a time period of 1 second. The sound produced in it is in the range of
MEDIUM
Science>Physics>Sound>Production of Sound
The driver of bus approaching a big wall notices that the frequency of his bus's horn changes from 420 Hz to 490 Hz when he hears it after it gets reflected from the wall. Find the speed of the bus if speed of the sound is 330 ms–1:
EASY
Science>Physics>Sound>Production of Sound
In a resonance tube experiment when the tube is filled with water up to a height of 17.0 cm, from bottom, it resonates with a given tuning fork. When the water level is raised the next resonance with the same tuning fork occurs at a height of 24.5 cm. If the velocity of sound in air is 330 m s-1, the tuning fork frequency is :
MEDIUM
Science>Physics>Sound>Production of Sound
Assume that the displacement s of air is proportional to the pressure difference Δp created by a sound wave. Displacement (s) further depends on the speed of sound (v), density of airρ and the frequency (f). If Δp=10 Pa, n=300 m s-1, p=1 kg m-3 and  f=1000 Hz, then s will be of the order of (take the multiplicative constant to be 1)
EASY
Science>Physics>Sound>Production of Sound
Draw the diagram of a sine wave pulse.
EASY
Science>Physics>Sound>Production of Sound
How does a vibrating tuning fork produce sound waves?                                            
EASY
Science>Physics>Sound>Production of Sound
Which of the following represents the sine wave pulse?
MEDIUM
Science>Physics>Sound>Production of Sound
Initial value of sine wave pulse is _____.
EASY
Science>Physics>Sound>Production of Sound
What conclusion can be obtained from the observation that when the prongs of a sound making tuning fork touch the surface of water in a beaker, the water gets splashed?
EASY
Science>Physics>Sound>Production of Sound
Draw the diagram of a cosine wave pulse.
EASY
Science>Physics>Sound>Production of Sound
What conclusion can be obtained from the observation that when the prongs of a sound-making tuning fork touch the surface of water in a beaker, the water gets splashed?
EASY
Science>Physics>Sound>Production of Sound

Question Image

This is the pulse of a cosine wave.

EASY
Science>Physics>Sound>Production of Sound
What does it mean if we say that a tuning fork has a frequency of 512 Hz?
MEDIUM
Science>Physics>Sound>Production of Sound
Describe a simple experiment to show that the prongs of a sound-producing tuning fork are vibrating.
EASY
Science>Physics>Sound>Production of Sound

A wave is a _____ that moves through a medium when the particles of the medium set neighbouring particles into motion.

EASY
Science>Physics>Sound>Production of Sound
What do you mean by a disturbance or a pulse?