Physics-Young's Modulus
NEET Physics Young's Modulus MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which of the following statements about Young's Modulus are correct?
A
Young's Modulus is defined as the ratio of stress to strain within the elastic limit.
B
Young's Modulus can be calculated by dividing the yield strength by the cross-sectional area.
C
A high value of Young's Modulus indicates that a material is more ductile.
D
Young's Modulus is applicable only to materials that do not exhibit plastic deformation.
Correct Answer
Option A
Detailed Explanation
Young's Modulus is defined as the ratio of stress to strain in the elastic region of the stress-strain curve, as stated in the context. A high Young's Modulus indicates a material's stiffness, not ductility. It applies to materials that can demonstrate elastic behavior before reaching their yield strength.
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