A spherical ball is dropped into a long column of a highly viscous liquid. The graph that represents the speed of the ball \((v)\) as a function of time \((t)\) is:
1. \(D\) 2. \(A\)
3. \(B\) 4. \(C\)
Subtopic:  Viscosity |
 73%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

The correct statement about the variation of viscosity of fluids with an increase in temperature is:

1. viscosity of gases decreases.
2. viscosity of both liquids and gases increases.
3. viscosity of liquids increases.
4. viscosity of liquids decreases.
Subtopic:  Viscosity |
 75%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

The velocity of a small ball of mass m and density ρ when dropped in a container filled with glycerin of density σ becomes constant after sometime. The viscous force acting on the ball in the final stage is:-

1. mgσρ

2. mg1+σρ

3. mg1-σρ

4. mg

Subtopic:  Viscosity |
 75%
From NCERT
NEET - 2021
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

advertisementadvertisement

The velocity of a small ball of mass \(M\) and density \(d\), when dropped in a container filled with glycerine becomes constant after some time. If the density of glycerine is \(d\over 2\) then the viscous force acting on the ball will be:

1. \(\frac{3Mg}{2}\) 2. \(2Mg\)
3. \(\frac{Mg}{2}\) 4. \(Mg\)
Subtopic:  Viscosity |
 63%
From NCERT
NEET - 2021
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
Links
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

Two small spherical metal balls, having equal masses, are made from materials of densities \(\rho_1\) and \(\rho_2\) such that \(\rho_1=8\rho_2\) and having radii of \(1\) mm and \(2\) mm, respectively. They are made to fall vertically (from rest) in a viscous medium whose coefficient of viscosity equals \(\eta\) and whose density is \(0.1\rho_2\). The ratio of their terminal velocities would be:

1. \(\dfrac{79}{72}\) 2. \(\dfrac{19}{36}\)
3. \(\dfrac{39}{72}\) 4. \(\dfrac{79}{36}\)
Subtopic:  Viscosity |
 79%
From NCERT
NEET - 2019
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
Links
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital