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Model Paper 6 — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETModel Paper 64 Marks
MCQ
Let a wire be suspended from the ceiling (rigid support) and stretched by a weight 4W attached at its free end. The longitudinal stress at any point of cross-sectional area 2A of the wire is:
  • A
    Zero
  • ✓
    $\frac{2 W}{A}$
  • C
    $\frac{W}{A}$
  • D
    $\frac{W}{2A}$
✓

Answer

Correct option: B.
$\frac{2 W}{A}$
(B)
Stress $=\frac{F}{A}=\frac{T}{A}=\frac{4 W}{2 A}=\frac{2 W}{A}$

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