Which of the following statements about Doppler Effect is (are) correct? 1. You

Question

Which of the following statements about Doppler Effect is (are) correct? 1. You are at the center of a circle, and a speaker is moving around the circle. You hear an increase in frequency 2. Car A and Car B travel at identical speeds, and Car A is behind Car B traveling in the same direction, If Car A activates a sound source, Car B will detect a reduced frequency because it is ahead of Car A 3. A firetruck sets off its siren as it moves toward a mountain. The frequency of the reflected sound waves detlected by the firetruck will be at a higher frequency than the original sound waves emitted o Only 1 9 Only 2 Only 3 :1 and 2 2and 3 1 and 3 All of them

Explanation / Answer

1st statement is False, since, frequency will be decreasing and increasing.

2nd statement is FALSE, since both are moving with same speed and in same direction, so frequency remains same

3rd Statement is TRUE

Answer : ONLY 3

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