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Physics · PYQ NEET UG 2023
हिन्दीLet a wire be suspended from the ceiling (rigid support) and stretched by a weight \( W \) attached at its free end. The longitudinal stress at any point of cross-sectional area \( A \) of the wire is :
Correct answer · Option 2
\( W/A \)
Explanation
Longitudinal stress is defined as the restoring force per unit cross-sectional area. Here, the stretching force equals the attached weight \( W \), so Stress = \( W/A \).
