Thermal Properties of Matter: JEE Mains 2022 June 29 Shift 2

Medium· Thermal expansion· +4 / −1
At what temperature should a gold ring of diameter 6.230 cm6.230\ \text{cm} be heated so that it can be fitted on a wooden bangle of diameter 6.241 cm6.241\ \text{cm}? Both the diameters have been measured at room temperature (27∘C27^\circ\text{C}). (Given : coefficient of linear thermal expansion of gold αL=1.4×10−5 K−1\alpha_L=1.4\times10^{-5}\ \text{K}^{-1})
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