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List of top Physics Questions on Viscosity asked in JEE Main
If an air bubble of diameter 2 mm rises steadily through a liquid of density 2000 kg/m³ at a rate of 0.5 cm/s, then the coefficient of viscosity of the liquid is _______ Poise.
JEE Main - 2026
JEE Main
Physics
Viscosity
A metal block of base area
\(0.20 \,m^2\)
is placed on a table, as shown in figure. A liquid film of thickness
\(0.25\, mm\)
is inserted between the block and the table. The block is pushed by a horizontal force of 0.1 N and moves with a constant speed. If the viscosity of the liquid is
\(5.0×10^{−3}Pl\)
, the speed of block is ________
\(×10^{−3}m/s\)
JEE Main - 2023
JEE Main
Physics
Viscosity
An air bubble of diameter 6 mm rises steadily through a solution of density 1750kg / m
3
at the rate of 0.35 cm/s. The co-efficient of viscosity of the solution (neglect density of air) is ____Pas (given, g = 10ms
-2
)
JEE Main - 2023
JEE Main
Physics
Viscosity
A water drop of radius 1 μm falls in a situation where the effect of buoyant force is negligible. Co-efficient of viscosity of air is 1.8 × 10
–5
Nsm
–2
and its density is negligible as compared to that of water (10
6
gm
–3
). Terminal velocity of the water drop is
(Take acceleration due to gravity = 10 ms
–2
)
JEE Main - 2022
JEE Main
Physics
Viscosity
If ρ is the density and η is coefficient of viscosity of fluid which flows with a speed
v
in the pipe of diameter
d
, the correct formula for Reynolds number
R
e
is:
JEE Main - 2022
JEE Main
Physics
Viscosity
The diameter of an air bubble which was initially 2 mm, rises steadily through a solution of density 1750 kg m
–3
at the rate of 0.35 cms
–1
. The coefficient of viscosity of the solution is _______ poise (in nearest integer). (The density of air is negligible).
JEE Main - 2022
JEE Main
Physics
Viscosity
The velocity of water in a river is
$18\, km/hr$
near the surface. If the river is
$5\, m$
deep, find the shearing stress between the horizontal layers of water. The co-efficient of viscosity of water
$= 10^{-2}$
poise.
JEE Main - 2014
JEE Main
Physics
Viscosity