Sound



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Contents

Sound Introduction


Description: "Sound introduction covers wave properties. Types of waves include transverse, characterized by perpendicular oscillations to the direction of propagation."


Propagation


Description: "Longitudinal waves involve oscillations parallel to the direction of wave propagation. The displacement relation for a progressive wave describes how particles move as the wave travels through a medium."


Parameters


Description: Properties of waves: Amplitude (A) measures maximum displacement, Phase (φ) indicates wave position, Wavelength is distance between crests, Time period (T), Frequency (n), Angular frequency (ω), Wave velocity characterize motion.


Speed of a Travelling Wave


Description: The velocity at which a wave propagates through a medium, dependent on the medium's properties and the wave's characteristics.


Estimation & Principle


Description: Determining speed of sound in gases involves understanding medium properties. Principle of superposition examines how waves combine to form resultant wave.


Beats


Description: Interference pattern resulting from superposition of two waves with slightly different frequencies, characterized by alternating loud and soft sounds.


Doppler Effect – Part I


Description: Change in perceived frequency or wavelength of a wave due to relative motion between source, observer, or medium.


Doppler Effect – Part II


Description: Shift in frequency or wavelength of a wave observed when either source or observer moves relative to the medium.


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