Physics-
General
Easy
Question
A detector is released from rest over a source of sound of frequency ƒ0 = 103 Hz. 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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S1 and S2 are two coherent sources of sound of frequency 110 Hz each. They have no initial phase difference. The intensity at a point P due to S1 is I0 and due to S2 is 4I 0. If the velocity of sound is 330 m/s then the resultant intensity at P is
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