MEDIUM
Earn 100

Draw the displacement-time graph of a longitudinal wave.

Important Questions on Sound

MEDIUM
Physical Science>Physics>Sound>Propagation of Sound
How do the following parameters change in, (a) compression, (b) rarefaction when a longitudinal wave propagates in the air? (i) pressure, (ii) density, (iii) volume, (iv) mass.
EASY
Physical Science>Physics>Sound>Propagation of Sound
Sound waves do not travel through
EASY
Physical Science>Physics>Sound>Propagation of Sound
The matter or substance through which sound is transmitted is called a _____________.
HARD
Physical Science>Physics>Sound>Propagation of Sound
With the help of an activity show that sound cannot travel in vacuum.
EASY
Physical Science>Physics>Sound>Propagation of Sound
At any instant a compression is formed at a point. After how much time A rarefaction can be produced?
MEDIUM
Physical Science>Physics>Sound>Propagation of Sound
Distinguish between compression and rarefaction.
EASY
Physical Science>Physics>Sound>Propagation of Sound
In case of a longitudinal wave, in the region of rarefaction
EASY
Physical Science>Physics>Sound>Propagation of Sound
In case of longitudinal wave, in the region of rarefaction
EASY
Physical Science>Physics>Sound>Propagation of Sound
What is compression and rarefaction in longitudinal wave? Explain.
EASY
Physical Science>Physics>Sound>Propagation of Sound
When the vibrating object moves backwards, it creates a region of low pressure called __________________.
EASY
Physical Science>Physics>Sound>Propagation of Sound
Even if a loud explosion takes place at any place on the moon, it would not be heard at a nearby point.
Give reason.
 
EASY
Physical Science>Physics>Sound>Propagation of Sound
At any instant a compression is formed at a point. After how much time another compression will be formed at the same point?
MEDIUM
Physical Science>Physics>Sound>Propagation of Sound
What are compressions and rarefactions in relation to a longitudinal wave? Draw a diagram to represent them.
MEDIUM
Physical Science>Physics>Sound>Propagation of Sound
When a ray of light refracts from denser medium to rarer medium, the angle of incidence is greater than the angle of refraction.
EASY
Physical Science>Physics>Sound>Propagation of Sound

A longitude wave consists of:

MEDIUM
Physical Science>Physics>Sound>Propagation of Sound
Describe with the help of a diagram, how compressions and rarefactions are produced in the air near a source of sound?
EASY
Physical Science>Physics>Sound>Propagation of Sound
Cotyledons are also called-
EASY
Physical Science>Physics>Sound>Propagation of Sound
A part of the longitudinal wave in which particle of medium are closer than the normal particle is called:
EASY
Physical Science>Physics>Sound>Propagation of Sound
Sound cannot travel through ________________.
MEDIUM
Physical Science>Physics>Sound>Propagation of Sound
An electric bell is suspended by thin wires in a glass vessel and set ringing. Describe and explain what happens if the air is gradually pumped out of the glass vessel.