Question 26.3.38: For a material, the modulus of rigidity is 100 G Pa and Pois...
For a material, the modulus of rigidity is 100 G Pa and Poisson’s ratio is 0.25. The value of modulus of elasticity in G Pa is
(a) 125 (b) 150 (c) 200 (d) 250.
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(d)
EXPLANATION
C=100 G Pa =100 \times 10^9 N / m ^2 \\ μ = 0.25 \\ E = 2C (1 + μ) \\ = 2 × 100 × 10^9 (1 + 0.25) \\ = 200 × 1.25 × 10^9 \\ = 250 × 10^9 N/m^2 = \pmb{250 GPa.}
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