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Consider a medium through which light is propagating with a speed v. Given a wavefront, in order to determine the wave front after a time interval ∆t, the secondary wavelets are drawn with a radius.
(A) of unit length
(B) v ∆ t
(C) \(\cfrac{Δt}v\)
(D) \(\cfrac v{Δt}\)
Consider a medium through which light is propagating with a speed v. Given a wavefront, in order to determine the wave front after a time interval ∆t, the secondary wavelets are drawn with a radius.
(A) of unit length
(B) v ∆ t
(C) \(\cfrac{Δt}v\)
(D) \(\cfrac v{Δt}\)
Correct option is (B) v ∆ t