alleryEach 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: syllabus Physics Part II, Chapter 10, Wave Optics._
Keep practising Wave Optics
Browse all Wave Optics questions for CBSE Class 12 (Science), or explore more Physics topics.
Related questions
Unpolarised light I0 crosses two polaroids with axes at 45°. Final intensity?Polarised light of intensity I0 meets a polaroid at 60°. Intensity passed?Polarised light I0 meets a polaroid at angle θ. Transmitted intensity?The pass-axis of a polaroid is oriented how relative to its aligned molecules?Polarisation shows that light waves are of which kind?In diffraction and interference, what happens to light energy?Viewing a bulb filament through a slit, which colour shows wider fringes?What household setup shows single-slit diffraction with a bulb filament?