Question

A motor car blow horn of frequency 124. Hz, moves
with a velocity of 72 km/h toward a vertical wall, the
frequency of reflected sound received by the driver, is
nearly equal to (v = 340 m/s)
(1) 124 Hz
(2) 114 Hz
(3) 140 Hz
(4) 120 Hz​

Answer 1

Explanation:

hope it is helpful to you

Answer 2

Answer:

the answer is (3) 140 Hz .... Hope this helps :)

Explanation:

hey mate please mark me as brainliest if this helped u I really need it