Questions
Three identical spherical shells, each of mass m and radius r are placed as shown in figure. Consider an axis XX' which is touching to two shells and Passing through diameter of third shell. Moment of inertia of the system consisting of these three spherical shells about XX 'axis is :
detailed solution
Correct option is C
IXX' = I1 + I2 + I323mr2+23mr2+mr2+23mr2+mr2(Using parallel axis theorem)⇒IXX′=2mr2+2mr2=4mr2Talk to our academic expert!
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Two discs have mass ratio 1 : 2 and diameter ratio 2 : 1, then find the ratio of their moments of inertia.
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