Question

5. Two identical uniform rod each of mass m and
length / joined perpendicular to each other. An axis
passes through junction and in the plane of rods.
Then ML of system about the axis is​

Answer 1

Attachment ⭐

MOI for 1st rod = ml²/3

MOI for 2nd rod = 0 (as it lies on axis )

as it is mentioned in question that axis lies passes through junction and lies in the plane of rods.

so, net MOI = ML²/3