Question
Physics Question on Waves
A source of sound of frequency 600 Hz is placed inside water. The speed of sound in water is 1500m/s and in air it is 300 m/s. The frequency of sound recorded by an observer who is standing in air is
A
200 Hz
B
3000 Hz
C
120 Hz
D
600 Hz
Answer
600 Hz
Explanation
Solution
The frequency is a characteristic of source. It is independent of the medium. Hence, the correct option is (d).