Q112. A tension of 20 N is applied to a copper wire with an initial cross-sectional area of 0.01 cm2. Given that the Young's modulus of copper is 1.1 × 1011 N/m2 and its Poisson's ratio is 0.32, what is the magnitude of the decrease in the wire's cross-sectional area?Physics — NUST Mock By IBAGRADS 5 — Question 112 of 200A. 1.16 × 10-6 cm2B. 1.16 × 10-5 m2C. 1.16 × 10-4 m2D. 1.16 × 10-3 cm2Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →