Physics · Thermal Properties of Matter
A metallic rod has an initial length L1 at a temperature of T1°C. When heated, its temperature increases to T2°C and its length increases to L2. Which of the following is the correct formula for the coefficient of linear expansion (α)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1α = L2 - L1L1(T2 - T1)✓
- 2α = L1(T2 - T1)L2 - L1
- 3α = L2L1(T2 - T1)
- 4α = L2 - L1L2(T2 - T1)
Correct answer
α = L2 - L1L1(T2 - T1)
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