Physics · 2025
JEE Main · 28 January 2025, Shift 2 · Q30
A uniform rod of mass 250 g having length 100 cm is balanced on a sharp edge at 40 cm mark. A mass of 400 g is suspended at 10 cm mark. To maintain…
A uniform rod of mass $\displaystyle 250$ g having length $\displaystyle 100$ cm is balanced on a sharp edge at $\displaystyle 40$ cm mark. A mass of $\displaystyle 400$ g is suspended at $\displaystyle 10$ cm mark. To maintain the balance of the rod, the mass to be suspended at $\displaystyle 90$ cm mark, is
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 190$ g
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.