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MHT CET20249 May 2024Morning ShiftPhysicsWave OpticsActual

A wavefront is a surface

Options

  1. Aperpendicular to the direction of propagation of light.
  2. Bparallel to the direction of propagation of light.
  3. Cwithout any specific orientation with direction of propagation of light.
  4. Dwhich has nothing to do with intensity of light.

Correct answer

A. perpendicular to the direction of propagation of light.

Step-by-step solution

- 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.

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