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JEE Mains · Physics · STD 11 - 6. system of particles and rotational motion

चित्रानुसार पतली वृत्ताकार डिस्क \(x y\) समतल में है। \(z\) तथा \(z'\) के सापेक्ष जड़त्व आघूर्णों का अनुपात होगा

  1. A \(1:2\)
  2. B \(1:4\)
  3. C \(1:3\)
  4. D \(1:5\)
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Answer & Solution

Correct Answer

(C) \(1:3\)

Step-by-step Solution

Detailed explanation

As we know, moment of inertia of a disc about an axis passing through \(C.G.\) and perpendicular to its plane, \({I_z}\, = \frac{{m{R^2}}}{2}\) Moment of inertia of a disc about a tangential axis perpendicular to its own plane, \({I_z}'\, = \frac{3}{{20}}m{R^2}\)…
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