Question

In designing, a beam for its use to support a load. The depression at centre is proportional to (where, $Y$ is Young?s modulus)

• A. $Y^2$
• B. $Y$
• C. $\frac{1}{Y}$
• D. $\frac{1}{Y^2}$

Answer 1

Answer: (C)

$\frac{1}{Y}$

Answer 2

$\delta=\frac{w l^{3}}{4 Y b d^{3}}$ or $\delta \propto \frac{1}{Y}$