Physics Elasticity Question 17
Question: The compressibility of water is $ 4\times {{10}^{-5}} $ per unit atmospheric pressure. The decrease in volume of 100 cubic centimeter of water under a pressure of 100 atmosphere will be
[MP PMT 1990]
Options:
A) 0.4 cc
B) $ 4\times {{10}^{-5}},cc $
C) 0.025 cc
D) 0.004 cc
Show Answer
Answer:
Correct Answer: A
Solution:
$ C=\frac{1}{K}=\frac{\Delta V/V}{\Delta P} $
Therefore $ \Delta V=C\times \Delta P\times V $
$ =4\times {{10}^{-5}}\times 100\times 100=0.4cc $