>_AS Level Physics A_H156/02 Question Paper Oct 2021 | Depth in Physics
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Two loudspeakers S1 and S2 are connected to a signal generator. The loudspeakers emit coherent sound waves. (a) State what is meant by the term coherent. ........................................... ... ........................................................................................................ .............................................................................................................................................. [1] (b) A microphone is connected to an oscilloscope. The points O, J, K and L all lie on a straight line as shown. The microphone is moved from O to L. L K J O S1 S2 Not to scale A series of maxima and minima is observed between O and L. The microphone records a maximum at O. As it moves towards L, the first minimum is observed at J and the next maximum at K. The distance between S1 and J is 2.00m and the distance between S2 and J is 2.08m. The distance between S1 and K is 2.05m and the distance between S2 and K is 2.21m. (i) Calculate the path difference at point J between the waves from S1 and S2..............................................................................continued [Show More]
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