JEE Mains · Physics · STD 11 - 6. system of particles and rotational motion
\(\mathrm{A}, \mathrm{B}\) and C are disc, solid sphere and spherical shell respectively with same radii and masses. These masses are placed as shown in figure.
The moment of inertia of the given system about \(P Q\) is \(\frac{X}{15} I\), where \(I\) is the moment of inertia of the disc about its diameter. The value of x is _______.
- A 188
- B 199
- C 177
- D 166
Answer & Solution
Correct Answer
(B) 199
Step-by-step Solution
Detailed explanation
All bodies have same mass and same radius. \(\mathrm{A} \rightarrow\) Disc \(\mathrm{B} \rightarrow\) Solid sphere \(\mathrm{C} \rightarrow\) Spherical shell and, \(\mathrm{I}=\frac{\mathrm{MR}^2}{4}\)…
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