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STD 11 - 6. system of particles and rotational motion — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 6. system of particles and rotational motion4 Marks
MCQ
One circular ring and one ciruclar disc, both are having the same mass and radius. the ratio of their moments of inertia about the axes passing through their centres and perpendicular to their planes, will be
  • A
    $1 : 1$
  • ✓
    $2 : 1$
  • C
    $1 : 2$
  • D
    $4 : 1$
✓

Answer

Correct option: B.
$2 : 1$
b
$\frac{{{I_{Ring}}}}{{{I_{Disc}}}} = \frac{{M{R^2}}}{{\frac{1}{2}M{R^2}}} = 2:1$

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