Fluid Mechanics Viscosity Question 313
Question: A soap film of surface tension $ 3\times {{10}^{-2}} $ formed in a rectangular frame cam support a straw as shown in Fig. If $ g=10m{{s}^{-12}} $ , the mass of the straw is
Options:
A) 0.006g
B) 0.06 g
C)0.6 g
D) 6g
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ m\times 10=2\times 3\times {{10}^{-2}}\times \frac{10}{100} $ or $ m=6\times {{10}^{-4}}kg=6\times {{10}^{-4}}\times 10^{3}g=0.6g $
BETA
