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प्रश्न
How do wavelets emanating from points on a wavefront spread?
पर्याय
Only in the backward direction at the speed of the wave
Only in the forward direction at zero speed
Parallel to the wavefront at zero speed
In all directions at the speed of the wave
MCQ
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उत्तर
Wavelets from points on the wavefront spread out in all directions at the speed of the wave. These wavelets are called secondary wavelets.
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