Physics · 2025
JEE Main · 22 January 2025, Shift 2 · Q33
A small rigid spherical ball of mass M is dropped in a long vertical tube containing glycerine. The velocity of the ball becomes constant after some…
A small rigid spherical ball of mass M is dropped in a long vertical tube containing glycerine. The velocity of the ball becomes constant after some time. If the density of glycerine is half of the density of the ball, then the viscous force acting on the ball will be
(consider g as acceleration due to gravity)
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle \frac{\mathrm{Mg}}{2}$
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.