Four small objects each of mass m are fixed at the corners of a rectangular wire-frame of negligible mass and of sides a and b (a gt b). If the wire frame is now rotated about an axis passing along the side of length b, then the moment of inertia of the system for this axis of rotation is

Four small objects each of mass m are fixed at the corners of a rectan

1.	Four small objects each of mass m are fixed at the corners of a rectangular wire-frame of negligible mass and of sides a and b (a gt b). If the wire frame is now rotated about an axis passing along the side of length b, then the moment of inertia of the system for this axis of rotation is
Answer» <html><body><p>`2ma^2`<br/>`4ma^2`<br/>`2 m (a^2 + b^2)`<br/>`2m (a^2- b^2)`</p>Solution :<a href="https://interviewquestions.tuteehub.com/tag/moment-25786" style="font-weight:bold;" target="_blank" title="Click to know more about MOMENT">MOMENT</a> of <a href="https://interviewquestions.tuteehub.com/tag/inertia-1043176" style="font-weight:bold;" target="_blank" title="Click to know more about INERTIA">INERTIA</a> of the system about an <a href="https://interviewquestions.tuteehub.com/tag/axis-889931" style="font-weight:bold;" target="_blank" title="Click to know more about AXIS">AXIS</a> passing along the side b is `I = ma^2 + <a href="https://interviewquestions.tuteehub.com/tag/0-251616" style="font-weight:bold;" target="_blank" title="Click to know more about 0">0</a> + ma^2 + 0 = 2ma^(2)` <br/> <img src="https://doubtnut-static.s.llnwi.net/static/physics_images/MTG_NEET_GID_PHY_XI_C05_E01_038_S01.png" width="80%"/></body></html>