Wavefronts - Practice Questions & MCQ

Light also shows the wave nature.  According to Huygens, each point source of light is a center of disturbance from which waves spread in all directions.

Wave front- 

• The locus of all particles in a medium, vibrating in the same phase is called WaveFront (WF).
• The direction of propagation of light is perpendicular to the WF.
• The time taken by the light to travel from one wavefront to another is the same along any ray.
•  The phase difference between various particles on the wavefront is zero.
• Various type of wavefront-  

1. Spherical WF- For a point source
2. Cylindrical WF- For line source
3. Plane WF- For parallel light rays