長一公尺且兩端固定的弦，以 1000Hz 的頻率振動時產生四個波腹，則弦上的波速為多少 m/s？ (A) 2000 (B) 1000 (C) 667 (D) 500

問題詳情

36. 長一公尺且兩端固定的弦，以 1000Hz 的頻率振動時產生四個波腹，則弦上的波速為多少 m/s？
(A) 2000
(B) 1000
(C) 667
(D) 500

參考答案

答案：D
難度：適中0.571429
統計：A(0),B(3),C(0),D(4),E(0)

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