60. A standing sound wave pattern on a long string is described by y5eeaf8dd9fe4d.jpg(all in SI unit). The distance between two nodes is ____________.
(A) 0.1 m
(B) 0.2 m
(C) 0.3 m
(D) 0.4 m
(E) 0.5 m

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統計: A(46), B(7), C(0), D(2), E(1) #2356621

詳解 (共 2 筆)

#4162150
 觀察其中跟x有關的部分為 sin(10...
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#4744984
k=2pi/lambda
lambda=0.2m
distance between nodes=lambda/2=0.1m
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