Question
Physics Question on Sound Wave
A speeding motorcyclist sees traffic jam ahead of him. He slows down to 36 km/hour. He finds that traffic has eased and a car moving ahead of him at 18 km/hour is honking at a frequency of 1392 Hz. If the speed of sound is 343 m/s, the frequency of the honk as heard by him will be :
A
1372Hz
B
1412Hz
C
1454Hz
D
1332Hz
Answer
1412Hz
Explanation
Solution
The correct option (B): 1412Hz