Match List-I with List-II List-I List-II (A) Moment of inertia of solid sphere of radius R about any tangent…

Match List-I with List-II

  List-I   List-II
(A) Moment of inertia of solid sphere
of radius R about any tangent.
(I) 53MR2
(B) Moment of inertia of hollow sphere of radius
R about any tangent.
(II) 75MR2
(C) Moment of inertia of circular ring of radius
R about its diameter.
(III) 14MR2
(D) Moment of inertia of circular disc of radius
R about any diameter.
(IV) 12MR2
  1. A-II, B-I, C-IV, D-III
  2. A-I, B-II, C-IV, D-III
  3. A-II, B-I, C-III, D-IV
  4. A-I, B-II, C-III, D-IV

Solution

For solid sphere

I0=Icom +MR2  (Using parallel axis theorem)

I0=25MR2+MR2

I0=75MR2AII

For hollow sphere

I=Icom+MR2I=53MR2BI

For Circular ring

I1+I2=I3 ( Using perpendicular axis theorem)

By symmetry MOI

About 1 and 2 Axis are same i.e.

I1=I2

  2I1=I3=MR2   Icom=MR2

I1=MR22 CIV

Similarly in disc

2I1=MR22Icom=MR22

I1=MR24DIII

Asked in: JEE Main 2022 (28 Jun Shift 1)

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