What is Doppler Effect?
The whistle of a fast moving train appears to increase in pitch as it approaches a stationary observer and it appears to decrease as the…
Physics
Explain Resonance Air Column Apparatus
The resonance air column apparatus consists of a glass tube G about one metre in length (Figure) whose lower end is connected to a reservoir…
Laws of Transverse Vibrations of Stretched Strings
The vibrations created by a string are nothing but a wave. A string is a tight wire. When it is plucked or bowed, progressive transverse…
Describe on Sonometer
The sonometer consists of a hollow sounding box about a metre long. One end of a thin metallic wire of uniform cross-section is fixed to…
Characteristics of Stationary Waves
When two, identical, progressive waves of equal amplitudes and equal wavelengths and traveling in the similar medium, along the similar straight line, but in opposite…
Define Stationary Waves
When two progressive waves of same amplitude and wavelength travelling along a straight line in opposite directions superimpose on each other, stationary waves are formed.…
Define Standing Waves in Strings
In musical instruments like sitar, violin, etc. sound is produced due to the vibrations of the stretched strings. Here, we shall discuss the different modes…
Uses of Beats
Uses of beats: (i) The phenomenon of beats is useful in tuning two vibrating bodies in unison. For example, a sonometer wire can be tuned…
Define Beats
When two waves of nearly equal frequencies traveling in a medium along the same direction superimpose upon each other, beats are produced. The amptitude of…
Experimental Demonstration of Interference of Sound
Demonstration of Interference of Sound: The phenomenon of interference between two longitudinal waves in air can be demonstrated by Quincke’s tube shown in Figure. Quincke’s…
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