A square frame ABCD is formed by four identical rods each of mass ‘m’ and length ‘l’. This frame is in X Y − plane such that side AB coincides with X-axis and side AD along Y-axis. The moment of inertia of the frame about X-axis is

Options

A. `(5 ml^(2))/(3)`
B. `(2ml ^(2))/(3)`
C. `(4 ml^(2))/(3)`
D. `(ml^(2))/(12)`

Answer

A

Explanation

`I=(ml^(2))/(3)+ (ml^(2))/(3) +mt^(2)`
`I =5/3 ml^(2)`