Question

For an elastic material

• A. $Y>\eta$
• B. $Y<\eta$
• C. $Y\eta =1$
• D. $Y=\eta$

Answer 1

The correct option is A $Y>\eta$

For an elastic material

Yound modulus is greater than the shearing strain

$Y=\frac{stress}{strain}=\frac{F/a}{\Delta l/l}\eta =\frac{F/a}{\theta }\theta >\Delta l/l$

Hence

$Y>\eta$

Since $\frac{\Delta l}{l}=\frac{Changesofdisplacement}{primaryvalueofdisplacement}$

$\theta =$ is the angle deformation of any object.