Draw a wave and indicate points which are (1) in phase (2) out of phase and (3) have a phase difference of `frac(pi)(2)`

Discuss analytically, the composition of two S.H.M.S of same period and parallel to each other. Find the resultant amplitude when phase difference is frac(pi)(2)

Two sources of sound of intensity I and 4I are used in an interference of sound experiment. Then the intensity of sound at a point where the waves from the two sources superimpose with a phase difference of (pi /2) rad is

A simple harmonic progressive wave is represented by y= A sin (100pi t +3x) .The distance between two points on the wave at a phase difference of (pi)/(3) radian is

The rope shown at an instant is carrying a wave travelling towards right, created by a source vibrating at a frequency n . Consider the following statements I. The speed of the wave is 4n xx ab II. The medium at a will be in the same phase as d after (4)/(3n)s III. The phase difference between b and e is (3pi)/(2) Which of these statements are correct

Write out relation between path difference and phase difference (/_\phi) .

A progressive wave is , y = 12 sin (5 t - 4 x) , where all the quantities are in SI unit. On this wave, how far away are the two points having a phase difference of 90^@ ?

What is meant by the phase at a point along the path of a wave ?

What will be intensities of the waves whenthe waves interfere . Out of phase.

When two particles performing SHM of same amplitude and frequency arriving at a point of medium simultaneously with phase difference of pi/2 , then the resultant path is