Physics · 2021
JEE Main · 26 August 2021, Shift 1 · Q22
Consider a badminton racket with length scales as shown in the figure. If the mass of the linear and circular portions of the badminton racket are…
Consider a badminton racket with length scales as shown in the figure.
If the mass of the linear and circular portions of the badminton racket are same (M) and the mass of the threads are negligible, the moment of inertia of the racket about an axis perpendicular to the handle and in the plane of the ring at, $\displaystyle \frac{r}{2}$ distance from the end $\displaystyle A$ of the handle will be \_\_\_\_ $\displaystyle \mathrm{Mr}^2$.
If the mass of the linear and circular portions of the badminton racket are same (M) and the mass of the threads are negligible, the moment of inertia of the racket about an axis perpendicular to the handle and in the plane of the ring at, $\displaystyle \frac{r}{2}$ distance from the end $\displaystyle A$ of the handle will be \_\_\_\_ $\displaystyle \mathrm{Mr}^2$.Official answer
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.