The idea of secondary wavelets for the propagation of a wave was first given by(a) Newton(b) Huygen(c) Maxwell(d) Fresnel
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the idea of secondary wavelet is first given by HUYGEN .
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Answer:
The idea of secondary spherical wavelets for the propagation of a particular wave was first given by (b) Huygens
Explanation:
According to Huygens' principle, every point on a given wavefront can be considered to be a source of secondary wavelets which are spherical spreading out in the forward direction at the same speed of light.
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