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一、大气压的存在、测定实验例1(2012年辽宁省沈阳市)图1为托里拆利实验的装置图,下列表述正确的是()(A)将玻璃管稍微倾斜,管内外水银面高度差将不变(B)将玻璃管稍微向上提起但没有离开液面,管内外水银面高度差将变大(C)向槽中继续注入少量水银,管内外水银面高度差将变小(D)换用更粗一些的等长玻璃管,管内外水银面高度差将不变
First, the existence of atmospheric pressure, the determination of Experimental Example 1 (Shenyang City, Liaoning Province in 2012) Figure 1 Torr split test device diagram, the following statement correctly () (A) the glass tube slightly tilted, inside and outside the tube mercury surface The height difference will not change. (B) lift the glass tube slightly upward without leaving the liquid surface, the height difference between the mercury inside and outside the tube will become larger. (C) continue to inject a small amount of mercury into the groove to reduce the mercury height difference between inside and outside of the tube D) Change to a thicker glass tube of the same length, the difference in height between the inside and outside of the tube will not change