Physics · 2019
JEE Main · 11 January 2019, Shift 2 · Q16
Two rods A and B of identical dimensions are at temperature 30°C. If A is heated upto 180°C and B upto T^° C, then the new lengths are the same. If…
Two rods A and B of identical dimensions are at temperature $\displaystyle 30$°C. If A is heated upto $\displaystyle 180$°C and B upto $\displaystyle \mathrm{T}^{\circ} \mathrm{C}$, then the new lengths are the same. If the ratio of the coefficients of linear expansion of A and B is $\displaystyle 4$ : $\displaystyle 3$, then the value of T is :
Official answer
(2)
$\displaystyle 230^{\circ} \mathrm{C}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.