When an aeroplane attains a speed higher than the speed of sound in air a loud bang is heard, this is because Physics - Questions and Answers

When an aeroplane attains a speed higher than the speed of sound in air a loud bang is heard, this is because

(a)Its wings vibrate so violently that the bang is heard

(b)It explodes

(c)It produces a shock wave which is received as the bang Right sign

(d)The normal engine noises undergo a Doppler Shift to generate the bang

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