NCERT · Class 11 · Physics · Thermal Properties of MatterThe ratio of coefficient of linear expansion ($\alpha$), area expansion ($\beta$), and volume expansion ($\gamma$) for an isotropic solid is:
Step-by-Step Solution
For an isotropic solid, $\beta = 2\alpha$ and $\gamma = 3\alpha$. Therefore, $\alpha : \beta : \gamma = 1 : 2 : 3$. Hence, option A is correct.
Detailed Options Breakdown
Option : 1 : 2 : 3 (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: 3 : 2 : 1
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Thermal Properties of Matter.
Option 2: 1 : 3 : 2
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Thermal Properties of Matter.
Option 3: 2 : 1 : 3
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Thermal Properties of Matter.
💡 Study Guide: This question tests core syllabus concepts from Thermal Properties of Matter. For formulas, key summaries, and mock exam reference guides, read the full Thermal Properties of Matter Revision Notes.