Physics · 2019
JEE Main · 10 January 2019, Shift 1 · Q1
The density of a material in SI units is 128 kg m^-3. In certain units in which the unit of length is 25 cm and the unit of mass is 50 g, the…
The density of a material in SI units is $\displaystyle 128 \mathrm{~kg} \mathrm{~m}^{-3}$. In certain units in which the unit of length is $\displaystyle 25$ cm and the unit of mass is $\displaystyle 50$ g, the numerical value of density of the material is :
Official answer
(1)
$\displaystyle 40$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.