問題詳情
46.兩喇叭連接同一聲源，相隔0.70公尺，同時發出570赫的聲波，聲速爲342公尺/秒，某人站在距離一喇叭爲4.7 公尺處，此人聽到聲音強度最弱，則此人到另一喇叭的距離可能爲若干公尺？
(A)5.0
(B)5.3
(C)5.5
(D)5.7
(A)5.0
(B)5.3
(C)5.5
(D)5.7
參考答案
答案：A
難度：困難0.30038
統計：A(79),B(61),C(40),D(27),E(0)
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