Physics-
General
Easy
Question
A detector is released from rest over a source of sound of frequency 
. The frequency observed by the detector at time t is plotted in the graph. The speed of sound in air is (g = 10 m/s2)
- 330 m/s
- 350 m/s
- 300 m/s
- 310 m/s
The correct answer is: 300 m/s
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