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Wavefronts - Practice Questions & MCQ
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main
Quick Facts
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5 Questions around this concept.
Solve by difficulty
EASYWhat is the type of the wavefront on earth for sunlight?
Consider a point at the focal point of a convergent lens. Another convergent lens of short focal length is placed on the other side. What is the nature of the wavefronts emerging from the final image?
Concepts Covered - 1
Wavefronts
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-
- Spherical WF- For a point source
- Cylindrical WF- For line source
- Plane WF- For parallel light rays
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