A solid cylinder of radius $\frac{R}{3}$ is removed from the solid cylinder of radius $R$ and length $L$ . The volume of material in the hollow cylinder is $\frac{x}{9} π r^{2} L$ .
32

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Solution

The correct option is A 32
$Volume of hollow cylinder = 4 π (r_{2}^{2} - r_{1}^{2}) L = 4 π (R^{2} - (\frac{R}{3})^{2}) L = \frac{32}{9} π r^{2} L$

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A solid cylinder of radius R3 is removed from the solid cylinder of radius R and length L. The volume of material in the hollow cylinder is x9πr2L.32

The correct option is A 32Volume of hollow cylinder =4π(r22−r21)L =4π(R2−(R3)2)L =329πr2L

A solid cylinder of radius $\frac{R}{3}$ is removed from the solid cylinder of radius $R$ and length $L$ . The volume of material in the hollow cylinder is $\frac{x}{9} π r^{2} L$ .
32

The correct option is A 32
$Volume of hollow cylinder = 4 π (r_{2}^{2} - r_{1}^{2}) L = 4 π (R^{2} - (\frac{R}{3})^{2}) L = \frac{32}{9} π r^{2} L$