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प्रश्न
The displacement y of a wave travelling in the x direction is given by y = (2 x 10-3) sin `(300 "t" - 2x + pi/4)`, where x and y are measured in metres and t in second. The speed of the wave is:
विकल्प
150 ms-1
300 ms-1
450 ms-1
600 ms-1
उत्तर
150 ms-1
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