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class 11
| physics
Solutions for all the questions from class 11
of subject physics
CLASS
class 10
class 11
class 12
class 6
class 7
class 8
class 9
SUBJECT
physics
CHAPTER
calorimetry
capacitor
center of mass
centre of mass
centre of mass linear momentum
centre of mass linear momentum and collision
circular motion
collision
current electricity
electrostatics
View All ↓
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
A thread is tied slightly loose to a wire frame as shown in the figure And the frame is dipped into a soap solution and taken out The frame is completely covered with the film. When the portion A is punctured with a pin the thread
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
The fundemantal quantity which has the same power in the dimensional formula of surface tension and coefficient of viscosity is:
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
A thin wire ring of
3
c
m
radius float on the surface of a liquid. The pull required to raise the ring before the film breaks is
3
0
.
1
4
×
1
0
−
3
N
more than its weight. The surface tension of the liquid (in
N
m
−
1
) is
:
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
A disc of paper of radius
R
has a hole of radius
r
. It is floating on the surface of a liquid of surface tension
′
T
′
. Then force of surface tension on the disc is:
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
Is surface tension a vector?
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
When a 'U' shaped slider of negligible mass is dipped in a soap solution and lifted, a thin film of soap is formed in the frame. It supports a weight of 2.0 x 10
−
2
N. If the length of the slider is 40cm, the surface tension of the film of soap is:
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
A certain number of spherical drops of a liquid of radius r coalesce to form a single drop of radius R and volume V. If T is the surface tension of the liquid, then
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
The surface tension of water is
7
×
1
0
−
2
N
/
m
.
The weight of water supported by surface tension in a capillary tube of 0.1 mm radius, will be __________.
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
In a surface tension experiment with a capillary tube water rises upto
0
.
1
m
If the same experiment repeated in an artificial satellite which is revolving around the earth water will rise in the capillary tube upto a height of
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
A drop of mercury of radius
2
m
m
is split into
8
identical drops. Find the increase in surface energy. Surface tension of mercury
=
0
.
4
6
5
J
m
−
2
1
2
3
4
5
6
7
8
9
10
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page
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class 11
| physics
Solutions for all the questions from class 11
of subject physics
Filter Results
CLASS
class 10
class 11
class 12
class 6
class 7
class 8
class 9
SUBJECT
physics
CHAPTER
calorimetry
capacitor
center of mass
centre of mass
centre of mass linear momentum
centre of mass linear momentum and collision
circular motion
collision
current electricity
electrostatics
View All ↓
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
A thread is tied slightly loose to a wire frame as shown in the figure And the frame is dipped into a soap solution and taken out The frame is completely covered with the film. When the portion A is punctured with a pin the thread
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
The fundemantal quantity which has the same power in the dimensional formula of surface tension and coefficient of viscosity is:
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
A thin wire ring of
3
c
m
radius float on the surface of a liquid. The pull required to raise the ring before the film breaks is
3
0
.
1
4
×
1
0
−
3
N
more than its weight. The surface tension of the liquid (in
N
m
−
1
) is
:
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
A disc of paper of radius
R
has a hole of radius
r
. It is floating on the surface of a liquid of surface tension
′
T
′
. Then force of surface tension on the disc is:
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
Is surface tension a vector?
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
When a 'U' shaped slider of negligible mass is dipped in a soap solution and lifted, a thin film of soap is formed in the frame. It supports a weight of 2.0 x 10
−
2
N. If the length of the slider is 40cm, the surface tension of the film of soap is:
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
A certain number of spherical drops of a liquid of radius r coalesce to form a single drop of radius R and volume V. If T is the surface tension of the liquid, then
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
The surface tension of water is
7
×
1
0
−
2
N
/
m
.
The weight of water supported by surface tension in a capillary tube of 0.1 mm radius, will be __________.
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
In a surface tension experiment with a capillary tube water rises upto
0
.
1
m
If the same experiment repeated in an artificial satellite which is revolving around the earth water will rise in the capillary tube upto a height of
Class 11
Physics
Mechanics
Mechanical Properties of Fluids
A drop of mercury of radius
2
m
m
is split into
8
identical drops. Find the increase in surface energy. Surface tension of mercury
=
0
.
4
6
5
J
m
−
2
1
2
3
4
5
6
7
8
9
10
Previous
page
1 / 194
You're on page
1
page
2
page
3
page
4
page
5
page
...
page
194
Next
page
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