gc textbook chapter 12 Sound (id: 736231f4b)

本题目来源于试卷: gc textbook chapter 12 Sound，类别为 通用国际物理

[填空题]
A tuning fork is set into vibration above a vertical opko7 ,bb (vchov5 pjtk1, *n4u/0gskraen tube filled with wat;ow:udc-h 8vo er (Fig. 12–35). The water level is allowed to drop slowly. As it does so, the air in the tube above the water level is heard to resonate with the tuning fork when the distance from the tubv:; -dhowoc u8e opening to the water level is 0.125 m and again at 0.395 m. What is the frequency of the tuning fork?   Hz

参考答案: 635±2%


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