As a spherical wavefront propagates, the amplitude (a) of a spherical wavefront varies with the distance r of the source
Which of the following method is used to determine the position of given wavefront after some instant of time ?
The amplitude factor of resulting wave, formed by superposition of two sinusoidal waves of equal amplitude a and constant phase difference is given by
When wavefront strikes a reflecting surface.
Plane wavefront can be obtained form
A cylindrical wavefront spreads form a line source which is comparable to a long and narrow slit. The wavefront is at a distance d form source then th amplitude of wave is proportional to
When a plane wavefront is incident on a double convex lens, the refracted wavefront is
