本题目来源于试卷: Physics Unit10: Fluids Related Topics，类别为 通用国际物理
[单选题]
A narrow tube is placed veu+ g.3 ry e6 pg, 7f/bul(c;g3tn.nrcpz8chzzrtically in a pan of wate .jg,6i xts;ttj f/(yd/x,aynr, and the water rises in the tube to 4.0 cm above the level of the pan. The surface tension in the liquid is lowered to one-half its original value by th,i;6yxg,./ / fdtjn t(ytjaxse addition of some soap. What happens to the height of the liquid column in the tube?
A. It drops to 2.0 cm.
B. It drops to 1.0 cm.
C. It drops or rises, but the height cannot be calculated from the information given.
D. It remains at the same height.
参考答案: A
本题详细解析:
暂无
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