MEDIUM
Earn 100

In displacement-time graph of longitudinal wave, how compression and rarefaction are represented?

Important Questions on Waves

EASY
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
The density of air at some point in a longitudinal sound wave is minimum at an instant. The pressure of air at that point is :
EASY
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
At any instant a compression is formed at a point. After how much time another compression will be formed at the same point?
EASY
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
When the vibrating object moves backwards, it creates a region of low pressure called __________________.
MEDIUM
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
When a ray of light refracts from denser medium to rarer medium, the angle of incidence is greater than the angle of refraction.
EASY
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
At any instant a compression is formed at a point. After how much time A rarefaction can be produced?
MEDIUM
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
Describe with the help of a diagram, how compressions and rarefactions are produced in the air near a source of sound?
EASY
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
In case of a longitudinal wave, in the region of rarefaction
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Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
A part of the longitudinal wave in which particle of medium are closer than the normal particle is called:
EASY
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
What is compression and rarefaction in longitudinal wave? Explain.
EASY
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
Sound cannot travel through ________________.
HARD
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
With the help of an activity show that sound cannot travel in vacuum.
MEDIUM
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
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.
MEDIUM
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
Distinguish between compression and rarefaction.
MEDIUM
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
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
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
The matter or substance through which sound is transmitted is called a _____________.
EASY
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
Sound waves do not travel through
EASY
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
In case of longitudinal wave, in the region of rarefaction
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Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves

A longitude wave consists of:

MEDIUM
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
What are compressions and rarefactions in relation to a longitudinal wave? Draw a diagram to represent them.
EASY
Physics>Waves and Thermodynamics>Waves>Transverse and Longitudinal Waves
Even if a loud explosion takes place at any place on the moon, it would not be heard at a nearby point.
Give reason.