The wavefronts from a point source are:
ASpherical
BFlattened
CConical
DStraight
Answer & Solution
Correct answer: A. Spherical
1. The source sends waves out equally in every direction.
2. Points of equal phase then lie at equal distances from it.
3. So the wavefronts are spheres.
_Source: NCERT Class 12 Physics Part II, Chapter 10, Wave Optics._
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