Consider a source of sound S and an observer P. The sound source is of frequency n_0 . The frequency observed by P is found to be n_1 if P approaches S at speed v and S is stationary, n_2 if S approaches P at a speed v and P is stationary and n_3 if each of P and S has speed v/2 towards one another. Now,

Consider a source of sound S and an observer P. The sound source is of

1.	Consider a source of sound S and an observer P. The sound source is of frequency n_0 . The frequency observed by P is found to be n_1 if P approaches S at speed v and S is stationary, n_2 if S approaches P at a speed v and P is stationary and n_3 if each of P and S has speed v/2 towards one another. Now,
Answer» `n_1 = n_2 = n_3` `n_1 LT n_2` `n_3 GT n_0` `n_3` lies between `n_1` and `n_2` Answer :B::C::D

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