NEET Physics Young's Modulus MCQ Question
Consider a cylindrical wire suspended from the ceiling and stretched under the action of a weight. Which of the following best describes the tensile stress in the wire?
It is the force exerted by the weight per unit area of the wire.
It is twice the force exerted by the weight per unit area of the wire.
It is the sum of forces exerted by the weight and the ceiling per unit area.
It is the force exerted by the ceiling alone per unit area of the wire.
Correct Answer
Detailed Explanation
Tensile stress in a wire is defined as the tension (force) exerted by the weight per unit area of the wire's cross-section, as explained in the NCERT context.
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