Physics, 11.10.2021 04:30 totallybriii

Quan sát sóng dừng trên sợi dây dài 60cm cố định hai đầu, thấy có 3 nút (bao gồm cả hai nút hai đầu) và 2 bụng. Bước sóng của sóng lan truyền trên sợi dây là:
A. 30cm. B. 40cm. C. 20cm. D. 60cm.

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Quan sát sóng dừng trên sợi dây dài 60cm cố định hai đầu, thấy có 3 nút (bao gồm cả hai nút hai đầ...