$(a)\;1.5\;\alpha\qquad(b)\;(\large\frac{5}{3})\;\alpha\qquad(c)\;1.25\;\alpha\qquad(d)\;(\large\frac{7}{5})\;\alpha$

Thermodynamics

Want to ask us a question? Click here

Browse Questions

Thermodynamics

Ad |

0 votes

0 votes

Answer : $\;(\large\frac{5}{3})\;\alpha$

Explanation :

$L_{1}=L (1+\alpha \bigtriangleup T)$

$L_{2}=2L (1+2\alpha \bigtriangleup T)$

$L_{3}=L_{1}+L_{2}$

$=3L + 5 \alpha \bigtriangleup T$

$=3L\; (1+ \large\frac{5}{3} \alpha \bigtriangleup T)$

Therefore , Coefficient of linear expansion of rod =$\;\large\frac{5}{3} \alpha$

Ask Question

Take Test

x

JEE MAIN, CBSE, AIPMT Mobile and Tablet App

The ultimate mobile app to help you crack your examinations

...