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A solid sphere of radius  has moment of inertia about its geometrical axis. If it is melted into a disc of radius  and thickness . If its moment of inertia about the tangential axis (which is perpendicular to plane of the disc), is also equal to , then the value of  is equal to

a)

b)

c)

d)



Question ID - 53166 | SaraNextGen Top Answer

A solid sphere of radius  has moment of inertia about its geometrical axis. If it is melted into a disc of radius  and thickness . If its moment of inertia about the tangential axis (which is perpendicular to plane of the disc), is also equal to , then the value of  is equal to

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (a) -

(a)

or  

127 votes


127