CBSE · Class 11 · Physics · Mechanical Properties of SolidsWhat is the SI unit of Young's Modulus of elasticity?
Step-by-Step Solution
Young's modulus is the ratio of longitudinal stress to longitudinal strain. Since strain is dimensionless, its SI unit is the same as stress, which is $\text{N/m}^2$ or Pascal (Pa).
Detailed Options Breakdown
Option : $\text{N}\cdot\text{m}$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Mechanical Properties of Solids.
Option 1: $\text{N/m}^2$ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: $\text{N/m}$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Mechanical Properties of Solids.
Option 3: Dimensionless
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Mechanical Properties of Solids.
💡 Study Guide: This question tests core syllabus concepts from Mechanical Properties of Solids. For formulas, key summaries, and mock exam reference guides, read the full Mechanical Properties of Solids Revision Notes.