# 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:

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:

1. $230^{\circ} \mathrm{C}$

2. $270^{\circ} \mathrm{C}$

3. $200^{\circ} \mathrm{C}$

4. $250^{\circ} \mathrm{C}$

JEE Main Previous Year Single Correct Question of JEE Main from Physics Termal Properties of Matter chapter.

JEE Main Previous Year 11 Jan. 2019 II

Correct Option: 1

Solution:

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