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CGP EDU Academic Team
Published on: September 13, 2026
How much force is required to produce an increase of 0.2% in the length of a brass wire of diameter 0.6 mm (Young’s modulus for brass = $0.9 \times 10^{11} \mathrm{N}/\mathrm{m}^2$ )
Text Solution
Verified by ExpertsThe correct answer is:
C
$F = \frac{YAl}{L} = 0.9 \times 10^{11} \times \pi \times (0.3 \times 10^{-3})^{2} \times \frac{0.2}{100} = 51 \text{ N}$
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