Properties Of Solids And Liquids Question 580

Question: If the length of a cylinder on heating increases by 2%, the area of its base will increase by

Options:

A) 0.5%

B) 2%

C) 1%

D) 4%

Show Answer

Answer:

Correct Answer: D

Solution:

$ A\propto L^{2} $

$ \Rightarrow $ $ \frac{\Delta A}{A}=2\cdot \frac{\Delta L}{L} $

$ \Rightarrow $ $ \frac{\Delta A}{A}=2\times 2=4% $ .



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