Physics-
General
Easy
Question
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
- I0
- 9I0
- 3I0
- 8I0
The correct answer is: 3I0
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Figure shown is a graph, at a certain time t, of the displacement function S(x,t) of three sound waves 1,2 and 3 as marked on the curves that travel along x–axis through air. If P1 ,P2 and P3 represent their pressure amplitudes respectively, then correct relation between them is :
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Chemistry-General
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Physics-General
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Physics-General
