Answer the following questions about thermal expansion of a solid cube.
PHYSICS · Multi-part · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter
Problem
Answer the following questions about thermal expansion of a solid cube.
(i) Define the coefficient of volume expansion γ of a solid.
(ii) If the coefficient of linear expansion of the material is α, show that for small temperature changes the coefficient of volume expansion satisfies γ≈3α.
(iii) Explain the approximation used in arriving at the relation in part (ii) and state its range of validity.