When light propagates through a given homogen | vedclass

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(D) According to Huygens' principle,every point on a wavefront acts as a source of secondary wavelets.In a homogeneous and isotropic medium,these seco

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primary wavefront and wavelets are equal.

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(D) According to Huygens' principle,every point on a wavefront acts as a source of secondary wavelets.In a homogeneous and isotropic medium,these secondary wavelets travel in all directions with the same speed as the speed of light in that medium.Since the primary wavefront itself is formed by the propagation of light at the speed of the medium,the velocity of the primary wavefront is equal to the velocity of the secondary wavelets.

When light propagates through a given homogeneous medium,the velocities of

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Huygens' concepts of secondary wavelets:

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