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Wave Optics — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsWave Optics1 Mark
MCQ
The wavefront is a surface in which:
  • ✓
    All points are in the same phase.
  • B
    There is a pair of points in opposite phase.
  • C
    There is a pair of points with phase difference $(\frac{\pi}{2})$.
  • D
    There is no relation between the phases.
✓

Answer

Correct option: A.
All points are in the same phase.

A wavefront is the locus of points characterized by propagation of position of the same phase:
a propagation of a line in $1D$, a curve in $2D$ or a surface for a wave in $3D.$

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