Sound Needs a Medium for Propagation
Sound Needs a Medium for Propagation: Overview
This topic explains that sound needs a medium to travel. It may be solid, liquid or gas. When air has been removed completely from a vessel, then it is said that there is a vacuum in the vessel. Sound cannot travel through vacuum.
Important Questions on Sound Needs a Medium for Propagation
Sound cannot be heard by us when it is produced by a
Choose the true statement in given sentences:
State the factors on which the speed of sound depends.
A source of wave produces 40 crests and 40 troughs in 0.4 seconds, then the frequency of the wave is
If 20 waves are produced per second, then its frequency in Hz is
When a vibrating object moves forward, it pushes the air in front of it creating a region of high pressure. This phenomenon is called_____.
The pitch of guitar sound is higher because of the frequency of sound produced by guitar is _____ than that of car horn.
Sound travels through the air if
In which medium does sound travel faster?
Sound will travel slower through an iron bar than an atmosphere of nitrogen.
Sound can travel in vacuum also.
Sound can travel only in vacuum.
In which medium sound travels the lowest?
Can sound travel through vacuum?
