Physics · 2021
JEE Main · 27 July 2021, Shift 1 · Q17
Choose the correct answer from the options given below:
| List - I | List - II | ||
| (a) | MI of the rod (length L, Mass M, about an axis ⟂ to the rod passing through the midpoint) | (i) | $\displaystyle 8 \mathrm{ML}^2 / 3$ |
| (b) | MI of the rod (length L, Mass 2M, about an axis ⟂ to the rod passing through one of its end) | (ii) | $\displaystyle \mathrm{ML}^2 / 3$ |
| (c) | MI of the rod (length 2L, Mass M, about an axis ⟂ to the rod passing through its midpoint) | (iii) | $\displaystyle \mathrm{ML}^2 / 12$ |
| (d) | MI of the rod (length 2L, Mass 2M, about an axis ⟂ to the rod passing through one of its end) | (iv) | $\displaystyle 2 \mathrm{ML}^2 / 3$ |
Official answer
(2)
(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.