Each point of a wavefront acts as a source of a:
AConstant amplitude
BBackward wavelet
CSecondary disturbance
DPrimary reflection
Answer & Solution
Correct answer: C. Secondary disturbance
1. This is the core statement of the Huygens principle.
2. Every point on the front sends out its own disturbance.
3. These spread out with the speed of the wave.
_Source: NCERT Class 12 Physics Part II, Chapter 10, Wave Optics._
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