MHT CET · Physics · Wave Optics
A wavefront is a surface
- A perpendicular to the direction of propagation of light.
- B parallel to the direction of propagation of light.
- C without any specific orientation with direction of propagation of light.
- D which has nothing to do with intensity of light.
Answer & Solution
Correct Answer
(A) perpendicular to the direction of propagation of light.
Step-by-step Solution
Detailed explanation
- Wavefront: The locus of all particles in a medium, vibrating in the same phase/constant phase is called waveFront.
- The direction of propagation of light (ray of light) is perpendicular to the waveFront.
- Everv point on the qiven wavefront acts as a source of a new disturbance called secondary wavelets which travel in all directions with the velocity of light in the medium.
- A surface touching these secondary wavelets tangentially in the forward direction at any instant gives the new wavefront at that instant. This is called a secondary wavefront.
- The direction of propagation of light (ray of light) is perpendicular to the waveFront.
- Everv point on the qiven wavefront acts as a source of a new disturbance called secondary wavelets which travel in all directions with the velocity of light in the medium.
- A surface touching these secondary wavelets tangentially in the forward direction at any instant gives the new wavefront at that instant. This is called a secondary wavefront.
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