CBSE Class 9 Answered
propagation of sound
Asked by ashishyadav | 22 Mar, 2021, 05:20: AM
A material medium is necessary for the propagation of sound. It can be solid, liquid or gas.
The disturbance which moves through a medium when the particles of the medium set the neighbouring particles into motion is known as a wave.
A sound wave can be considered the propagation of pressure or density variations in the medium, i.e. it propagates in a medium as a series of compressions and rarefactions.
A region of compressed air (increased density or pressure) is called a compression (C) and that of rarefied air (decreased density or pressure) is called a rarefaction (R).
A vibrating object produces a series of compressions and rarefactions in the medium.
Answered by Shiwani Sawant | 22 Mar, 2021, 10:16: AM
Application Videos
Concept Videos
CBSE 9 - Physics
Asked by ashishyadav | 22 Mar, 2021, 05:20: AM
CBSE 9 - Physics
Asked by Alamglassfebricartion | 16 Mar, 2021, 09:57: AM
CBSE 9 - Physics
Asked by upmasoodpassi | 05 Apr, 2020, 11:09: AM
CBSE 9 - Physics
Asked by Anjali Shrivastava | 27 Dec, 2019, 16:03: PM
CBSE 9 - Physics
Asked by narkhedemukesh | 22 Nov, 2019, 19:09: PM
CBSE 9 - Physics
Asked by faishalkohli0786 | 08 Apr, 2019, 23:26: PM
CBSE 9 - Physics
Asked by AMRIT09 | 05 Jan, 2019, 13:24: PM
CBSE 9 - Physics
Asked by Vishalgarg1234 | 22 Nov, 2018, 15:29: PM
CBSE 9 - Physics
Asked by Topperlearning User | 13 May, 2015, 15:55: PM