Matchless Formula Of Sound Class 9
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The time taken for one complete oscillation in the density of the medium is called the Time Period.
Formula of sound class 9. Sound travels in form of wave. Sound is produced due to the vibration of objects. The speed of sound is an important parameter in many fields of physics.
It moves by transferring energy from one particle to another and can be heard easily when it reaches a persons ear. Sound which lies below the frequency of 20 Hz is called infrasonic sound. To verify the laws of reflection of sound.
Law of conservation of energy is also applicable to sound. The sensation felt by our ears is called sound. Vibration is the rapid to and fro motion of an object.
Simple pendulum produces infrasonic sound below 20 Hz of frequency. Difference of loudness L 2 - L 1 10 log 10 I 1 I 0. Wavelength Frequency Time Period.
Relation between speed of sound time of hearing echo and distance of reflection body. Sound is produced when object vibrates or sound is produced by vibrating objects. It travels only through a medium like water air and solid.
Topics covered in the lesson are Introduction Echo Wave and its types Audible and inaudible sound Characteristics of sound Ultrasound and its applications Sound needs a medium to travel. It is a form of energy produced by vibration and it needs medium to propagate. 2 Distance Time Speed of sound Recommend 2 Comment 0.
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