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A thin wire of length L and uniform linear mass density ρ  is bent into a circular loop with centre at O as shown.  The moment of inertia of the loop about the axis XX’  is    

 

(a)      ρL3/8π2

(b)    ρL3/16π2

(c)     5ρL3/16π2

(d)     3ρL3/8π2

Ans. d

(8)

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