JEE Main & Advanced
Sample Paper
JEE Main Sample Paper-22
question_answer
A source of sound of frequency 600 Hz is placed inside water. The speed of sound in water is 1500 m/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
Correct Answer:
D
Solution :
Frequency is a characteristic of source and independent of properties of medium.