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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Three rods of equal length l are joined to form an equilateral triangle PQR. O is the mid point of PQ. Distance OR remains the same for small change in temperature. Coefficient of

Three rods of equal length l are joined to form an equilateral triangle PQR. O is the mid point of PQ. Distance OR remains the same for small change in temperature. Coefficient of

Three rods of equal length l are joined to form an equilateral triangle PQR. O is the mid point of PQ. Distance OR remains the same for small change in temperature. Coefficient of