A person observes a change of 2.5 % in frequency of sound of horn of a car. If the car is approaching forward the person & sound velocity is 320 m/s, then velocity of car in m/s will be approximaterly :-A. 8 m / s (approx.)B. 800 m / sC. 7 m / sD. 6 m / s (approx.)

A person observes a change of 2.5 % in frequency of sound of horn of a

1.	A person observes a change of 2.5 % in frequency of sound of horn of a car. If the car is approaching forward the person & sound velocity is 320 m/s, then velocity of car in m/s will be approximaterly :-A. 8 m / s (approx.)B. 800 m / sC. 7 m / sD. 6 m / s (approx.)
Answer» Correct Answer - A

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A person observes a change of 2.5 % in frequency of sound of horn of a car. If the car is approaching forward the person & sound velocity is 320 m/s, then velocity of car in m/s will be approximaterly :-A. 8 m / s (approx.)B. 800 m / sC. 7 m / sD. 6 m / s (approx.)

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