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AP EAMCET202120 Aug 2021Evening ShiftPhysicsWave OpticsActual

The wave front is a surface in which

Options

  1. Aall points are in the same phase
  2. Bthere are pairs of points in opposite phase
  3. Cthere are pairs of points with phase difference ( π / 2 )
  4. Dthere is no relation between the phases

Correct answer

A. all points are in the same phase

Step-by-step solution

A wave front is a surface over which an optical wave has a constant phase (i.e. there is no phase difference). Or such a surface which envelopes the particles that are in the same state of vibration is known as a wave front. The wave front at any instant is defined as the locus of all the particles of the medium which are in the same state of vibration.

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