Question
Question: A source of sound with frequency 256 Hz is moving with a velocity v towards a wall and an observer i...
A source of sound with frequency 256 Hz is moving with a velocity v towards a wall and an observer is stationary between the source and the wall. When the observer is between source and the wall, he finds that the frequency of the waves received directly from the source is x and the frequency of the waves received after reflection from the wall is y; then –
A
x > y
B
x < y
C
x = y
D
Nothing can be predicted
Answer
x = y
Explanation
Solution
x = y = 256 