Physics · 2026
JEE Main · 24 January 2026, Shift 2 · Q31
A cubical block of density ρ_b=600 kg / m^3 floats in a liquid of density ρ_e =900 kg / m^3. If the height of block is H=8.0 cm then height of the…
A cubical block of density $\displaystyle \rho_b=600 \mathrm{~kg} / \mathrm{m}^3$ floats in a liquid of density $\displaystyle \rho_{\mathrm{e}}=900$ $\displaystyle \mathrm{kg} / \mathrm{m}^3$. If the height of block is $\displaystyle H=8.0 \mathrm{~cm}$ then height of the submerged part is
$\displaystyle \_\_\_\_$ cm.
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle 5.3$
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.