PART-I PHYSICS
Three identical solid spheres each have mass ' 
' and diameter ' 
' are touching each as shown in the figure. Calculate ratio of moment of inertia about the axis perpendicular to plane of paper and passing through point 
and 
as shown in the figure. Given 
is centroid of the triangle
Text Solution
Verified by ExpertsA
Moment of Inertia of solid sphere 
Distance of centroid (Point 
) from centre of sphere 
By Parallel axis theorem,
Moment of Inertia about 
Moment of Inertia about 
Now ratio 
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