MHT CET 2024 Physics question
Two rods, one of aluminium and the other of steel, having initial lengths and are connected together to form a single rod of length . The coefficients of linear expansion of aluminium and steel are and respectively. If the length of each rod increases by the same amount, when their temperatures are raised by , then the ratio will be
Answer: (C)
Solution
The increase in length is . Equal increase in both rods: , so . Then $ = = {1 +
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