47. Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons? A.1.8 km, 0.15 km B.2.2 km, 0.20 km C.2.8 km, 0.25 km D.3.3 km, 0.30 km
Solution: 3.3 km, 0.30 km.
