JEE Main 2022 Physics 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 (27°C). (Given: coefficient of linear thermal expansion of gold )
Answer: (4)
Solution
The diameter must increase by cm. From , = 0.011/(6.230
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