Wave Motion 2 Question 39

39. When two progressive waves y1=4sin⁡(2x−6t) and y2=3sin⁡(2x−6t−π2) are superimposed, the amplitude of the resultant wave is

(2010)

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Answer:

Correct Answer: 39. (5)

Solution:

  1. Phase difference between the two waves is 90∘. Amplitudes are added by vector method.

∴ Answer is 5 .

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