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From a circular disc of radius  and mass 9 , a small disc of radius /3 is removed from the disc. The moment of inertia of  the remaining disc about an axis perpendicular to the plane of the disc and passing through  is

a)

b)

c)

d)


Question ID - 100277 | SaraNextGen Answer

From a circular disc of radius  and mass 9 , a small disc of radius /3 is removed from the disc. The moment of inertia of  the remaining disc about an axis perpendicular to the plane of the disc and passing through  is

a)

b)

c)

d)

1 Answer - 5876 Votes

3537

Answer Key : (a) -

(a)

or                                           …(i)

Here,   

Substituting in Eq. (i), we have



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