Question
Physics Question on doppler effect
A motor-cyclist moving towards a huge cliff with a speed of 18 kmh-1, blows a horn of source frequency 325 Hz. If the speed of the sound in air is 330 ms-1, the number of beats heard by him is
A
5
B
4
C
10
D
7
Answer
5
Explanation
Solution
The correct answer is Option (A) : 5