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A wave is represented by the equation `y=10 sin 2pi (100 t-0.02x)+ 10 sin 2pi (100t +0.02 x).` The maximum amplitude and loop length are respectively.A. 20 units and 30 unitsB. 20 units and 25 unitsC. 30 units and 20 unitsD. 25 units and 20 units |
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Answer» Correct Answer - B `y 20 sin 2pi (100t) cos 2 pi (0.02x)` `therefore A =20, `loop length `=lamda//2 =(50)/(2) =25` units |
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