Question

What is the difference between the plane wave and spherical wave?

Answer 1

Hint: A wave is a propagating dynamic disturbance (change from equilibrium) of one or more quantities in physics, mathematics, and related areas, frequently represented by a wave equation. At least two field quantities in the wave medium are involved in physical waves. Periodic waves occur when variables oscillate periodically around an equilibrium (resting) value at a specific frequency.

Complete step-by-step solution:
Spherical waves
Every place where a light disturbance lands generates a spherical wave, and the total of these secondary waves defines the wave's shape at any subsequent moment. The Huygen-Fresnel Principle states that waves interact in either a constructive or destructive manner when they interact with one another. When waves are fully in phase with each other, constructive interference occurs, amplifying the waves. When waves are exactly out of phase with each other, destructive interference occurs, and if waves are perfectly out of phase with each other, the wave will be totally cancelled out. The waves occur in a spherical configuration because they all originate from a single point source. All of the waves are spherical and originate from a single point source.
Plane waves
A plane wave is a constant-frequency wave with infinite parallel planes of constant peak-to-peak amplitude normal to the phase velocity vector as wavefronts. A real plane wave cannot exist in actuality; only a plane wave of infinite length may propagate as a plane wave. Many waves in a limited region of space are roughly plane waves. In its far-field area, a confined source like an antenna creates a field that is roughly a plane wave distant from the antenna. If the length scales are significantly greater than the wavelength of the wave, as is commonly the case in optics, the waves can be treated as light beams that correspond to plane waves locally.
Note:The disturbance will travel in a single direction as a plane wave. When a string connected at both ends is plucked, for example, transverse waves are created. In transverse waves, the medium's particles vibrate in a single direction. The disturbance propagates in all directions from the source as a spherical wave. Consider the light from a single light source.