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Two sinusoidal waves of the same frequency travel in the same direction along a string. If `A_(1) =m 3.0 cm, A_(2) = 4.0 cm, phi_(1) = 0`, and `phi_(2) = pi//2 rad`, what is the amplitude of the resultant wave ?

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Resultant amplitude `= sqrt(3^(2) + 4^(2) + 2 xx 3 xx 4 xx cos 90^(@)) = 5 cm`.
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RESONANCE ENGLISH-TRAVELLING WAVES-Exercise- 3 PART I
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  3. A 20 cm long string, having a mass of 1.0 g, is fixed at both the ends...

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  7. A horizontal stretched string, fixed at two ends, is vibrating in its ...

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  8. One end of a taut string of length 3 m along the x-axis is fixed at x ...

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  11. An aluminium wire of cross-sectional area (10^-6)m^2 is joined to a st...

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  13. A metal wire with volume density rho and young's modulus Y is stretche...

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  14. Find velocity of wave is string A &B.

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  15. A string of length 50 cm is vibrating with a fundamental frequency of ...

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  16. A string fixed at both is vibrating in the lowest mode of vibration fo...

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  17. A guitar string is 90 cm long and has a fundamental frequency of 124 H...

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  18. A piano wire weighing 6.00 g and having a length of 90.0 cm emits a fu...

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  19. Length of a sonometer wire is 1.21 m. Find the length of the three seg...

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  20. In the figure shown A and B are two ends of a string of length 100m. S...

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