The product of dimensions of Young's modulus and stress are:
Correct answer: C. [ML-1T-2]
- A. [ML2T-1]
- B. [ML-1T2]
- C. [ML-1T-2]
- D. [ML2T-3]
Explanation
The formula for Young's Modulus is:Where E is Young's Modulus/pressureσ is stress/ force per unit areaΜ is strain/ proportional deformationIf you observe the formula, strain is the ratio of the same dimensions. Hence, strain is a dimensionless quantity.Therefore, Young's modulus has the same dimensions that stress has.[ML−1T−2]
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