A) \[\left( \frac{15}{32} \right)M{{R}^{2}}\]
B) \[\left( \frac{1}{8} \right)M{{R}^{2}}\]
C) \[\left( \frac{3}{8} \right)M{{R}^{2}}\]
D) \[\left( \frac{13}{32} \right)M{{R}^{2}}\]
Correct Answer: D
Solution :
| [d] M.I. of complete disc about its centre O. |
(i) |
 |
| Mass of circular hole (removed) |
 |
| M.I. of removed hole about its own axis |
 |
| M.I. of removed hole about O' |
 |
 |
 |
| M.I. of complete disc can also be written as |
 |
(ii) |
| From eq.(i) and (ii), |
   |
 |
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