Write whether the following statement is True or False:
If coefficient of linear expansion of iron is 1.2 × 10⁻⁵ /°C, then coefficient of cubical expansion of iron is 3.6 × 10⁻⁵ /°C.
WBBSE
Class X
Physical Science
Thermal phenomena
01 Mark
2025
True
Explanation
The relationship between the coefficients of expansion for an isotropic solid is: γ = 3α
∴ γ = 3α = 3 × 1.2 × 10⁻⁵ = 3.6 × 10⁻⁵ /°C
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