Questions
Three waves of equal frequencies having amplitudes arrive of a given point. Phase difference between first and second wave is and that between second and third wave is .Then amplitude of the resulting wave in ,is
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Correct option is C
AR→=A1→+A2→+A3→∴AR=(A1−A3)2+A22 =(10−7)2+42μm=5μmSimilar Questions
Two loudspeakers A and B, 1.0 m apart, produce sound waves of the same wavelength and in the same phase. A sensitive sound detector, moving along P Q parallel to line AB ,2.4 m away, detects maximum sound at P (on the perpendicular bisector of AB) and another maximum sound when it first reaches Q directly opposite to B as shown . The wvelength of sound emitted by the speakers is
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