Question:
Two rods $\mathrm{A}$ and $\mathrm{B}$ of identical dimensions are at temperature $30^{\circ} \mathrm{C}$. If $A$ is heated upto $180^{\circ} \mathrm{C}$ and $B$ upto$\mathrm{T}^{\circ} \mathrm{C}$, then the new lengths are the same. If the ratio of the coefficients of linear expansion of $\mathrm{A}$ and $\mathrm{B}$ is $4: 3$, then the value of T is:
$230^{\circ} \mathrm{C}$
$270^{\circ} \mathrm{C}$
$200^{\circ} \mathrm{C}$
$250^{\circ} \mathrm{C}$
Question of from chapter.
JEE Main Previous Year 11 Jan. 2019 II
Correct Option: 1
Solution:
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