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JEE MAIN 2022
29-06-22 S2
Question
At what temperature a gold ring of diameter 6.230 cm be heated so that it can be fitted on a wooden bangle of diameter 6.241 cm? Both the diameters have been measured at room temperature $\left(27^{\circ} \mathrm{C}\right)$.(Given: coefficient of linear thermal expansion of gold $\left.\alpha_{\mathrm{L}}=1.4 \times 10^{-5} \mathrm{~K}^{-1}\right)$
Select the correct option:
A
$125.7^{\circ} \mathrm{C}$
B
$91.7^{\circ} \mathrm{C}$
C
$425.7^{\circ} \mathrm{C}$
D
$152.7^{\circ} \mathrm{C}$
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Solution
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Question Tags
JEE Main
Physics
Hard
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