Physics · 2022
JEE Main · 24 June 2022, Shift 1 · Q60
A metre scale is balanced on a knife edge at its centre. When two coins, each of mass 10 g are put one on the top of the other at the 10.0 cm mark…
A metre scale is balanced on a knife edge at its centre. When two coins, each of mass $\displaystyle 10$ g are put one on the top of the other at the $\displaystyle 10.0$ cm mark the scale is found to be balanced at $\displaystyle 40.0$ cm mark. The mass of the metre scale is found to be $\displaystyle x \times 10^{-2} \mathrm{~kg}$. The value of $\displaystyle x$ is
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Official answer
6
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.