Question
Physics Question on speed and velocity
A person observes two moving trains, ‘A’ reaching the station and ‘B’ leaving the station with equal speed of 30 m/s. If both trains emit sounds with frequency 300 Hz, (Speed of sound: 330 m/s) approximate difference of frequencies heard by the person will be:
A
33 Hz
B
10 Hz
C
55 Hz
D
80 Hz
Answer
55 Hz
Explanation
Solution
The correct answer is 55 Hz