Waves and Sound

Condition for propagation of Stationary Waves Stationary waves can form under a variety of conditions, but they are easily demonstrated in a medium which is…

Experiment for the production of stationary wave: Attach a scale pan at one end of a string taken over a pulley. Attach the other end…

Characteristics of stationary wave: The resultant wave produced by the superposition of two progressive waves having the same wavelength and amplitude, travelling in opposite direction…

The stationary wave can be produced for both transverse and longitudinal waves. If two ends of a string are fastened straight and if, at a…

Principle of Superposition Law: – When two or more waves pass simultaneously through the same medium, the resultant displacement of each particle of the medium…

Mathematical Expression for Intensity of Wave Suppose, a progressive wave is travelling along positive x-direction with constant velocity v. Due to wave motion particles of…

Experiment: Proof of the inverse square law When the sound waves originate from a point source, the emitted wave fronts become spherical. If the distance…

Unit of Intensity: According to definition intensity the rate of flow of energy through unit area. So, its S.I. unit is Joule s-1m-2 or, Wm-2…

Dependence of intensity on different factors: Intensity of sound depends on the following factors: Amplitude of vibration of the source: Intensity of sound is proportional…

The intensity of Sound Wave How strong the sound is designated by its loudness. Loudness of a sound is expressed by the intensity of sound.…