November 2020

What are Sound Beats? When two sound waves, having slightly different frequencies are made to travel along the same path in the same direction through same medium, they superpose upon each other and the intensityRead More →

What is called “Doppler effect”? If there is a relative motion between the source of sound and the observer, the frequency of sound felt by the observer is different from the frequency of sound emittedRead More →

What is the speed of Sound? Scientist Newton first stated a theoretical expression for speed of sound in a gaseous medium. Newton’s theory for speed of sound in gases is based on the following assumptions.Read More →

What are effects of boundary in Reflection of Waves? When a progressive wave comes in contact with a boundary interface, then reflection of waves or refraction occur depending upon the nature of boundary conditions.  ReflectionRead More →

What is called Amplitude of a Wave? In a wave propagation, particles of the medium oscillates / vibrates to and fro about their mean position. The mean position is called equilibrium position. The displacement ofRead More →

What is Wave Motion? Propagation of a disturbance ( a wave ) which travel through a medium due to vibrations or oscillations of medium particles about their mean position is called a wave motion. WaveRead More →

What is called Resonance? Resonance is a particular case of forced oscillations in which the frequency of the driving force becomes equal to the natural frequency of the oscillating body which results in producing ofRead More →