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The moment of inertia of an uniform circular disc about its central axis is ‘I’. Its M.I about a tangent in its plane is equal to

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By Expert Faculty of Sri Chaitanya
a
2I
b
2.5 I
c
1.5 I
d
I/2

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detailed solution

Correct option is B

M.I about central axis I=MR22
M.I about tangent is

I'=MR24+MR2

 I'=54MR2=52MR22
I' = 2.5 I


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