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Statement of a problem № 2796

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In Fig. 23-1, 5 and S2 are identical sound sources. They send out their wave crests simultaneously (the sources are in phase). For what values of L1 - L2 will constructive interference obtain and a loud sound be heard at point P?

Solution:
In Fig. 23-1, 5 and S2 are identical sound sources. They send out their wave cre

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