Properties Of Solids And Liquids Question 481
Question: If the length of a cylinder on heating increases by 2%, the area of its base will increase by [CPMT 1993; BHU 1997]
Options:
A) 0.5%
B) 2%
C) 1%
D) 4%
Show Answer
Answer:
Correct Answer: D
Solution:
$ A\propto L^{2} $
therefore $ \frac{\Delta A}{A}=2\cdot \frac{\Delta L}{L} $
therefore $ \frac{\Delta A}{A}=2\times 2=4% $ .
