Question
Is Huygen’s principle valid for longitudunal sound waves?
✓
Answer
The point source propagates light in all directions symmetrically. Similarly, in case of any point source of sound wave, the disturbance due to the source propagates in spherical symmetry that is in all directions. The formation of wavefront is in accordance with Huygen's principle.
Hence, Huygen's principle is valid for longitudinal sound waves.
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