Properties Of Solids And Liquids Question 497
Question: If a cylinder of diameter 1.0 cm at 30°C is to be solid into a hole of diameter 0.9997 cm in a steel plate at the same temperature, then minimum required rise in the temperature of the plate is : (Coefficient of linear expansion of steel $ =12\times {{10}^{-6}}/{}^\circ C $ ) [EAMCET 2001]
Options:
A) 25°C
B) 35°C
C) 45°C
D) 55°C
Show Answer
Answer:
Correct Answer: A
Solution:
$ \alpha =\frac{\Delta L}{L _{0}\Delta \theta }=\frac{(1-0.9997)}{0.9997\times 12\times {{10}^{-6}}}=25{}^\circ C $
