题目
球形薄液泡内外压强差为( )A. -(2alpha)/(R)B. (2alpha)/(R)C. -(4alpha)/(R)D. (4alpha)/(R)
球形薄液泡内外压强差为( )
A. $-\frac{2\alpha}{R}$
B. $\frac{2\alpha}{R}$
C. $-\frac{4\alpha}{R}$
D. $\frac{4\alpha}{R}$
题目解答
答案
D. $\frac{4\alpha}{R}$
A. $-\frac{2\alpha}{R}$
B. $\frac{2\alpha}{R}$
C. $-\frac{4\alpha}{R}$
D. $\frac{4\alpha}{R}$