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The cross-sections of two solid bars made of the same material are shown in the figure. The square cross-section has flexural (bending) rigidity I1 while the circular cross-section has flexural rigidity I2. Both sections have the same cross-sectional area. The ratio I1 /I2 is
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- 1/π
- 2/π
- π/3
- π/6
Correct Option: C
NA