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Two waves are travelling in same directi...

Two waves are travelling in same direction along a stretched string. The waves are `90^@` out of phase. Each wave has an amplitude of 4.0 cm. Find the amplitude of the resultant wave.

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The correct Answer is:
C
`A_(R) = 4(sqrt2) cm `
`=5.66 cm`
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DC PANDEY-SUPERPOSITION OF WAVES-Level 1 Subjective
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