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Please clarify: (a) When a source moves with a speed greater than that of sound, will Dopplers formula hold? What will happen? (b) If oil of density higher than density of water is used in resonance tube, how will the frequency change? (C) Why the pitch of an organ pipe on a hot summer day higher?


Please clarify:

(a) When a source moves with a speed greater than that of sound, will Dopplers formula hold? What will happen?

(b) If oil of density higher than density of water is used in resonance tube, how will the frequency change?

(C) Why the pitch of an organ pipe on a hot summer day higher?

     


Grade:upto college level

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