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Recent questions in Mechanical Properties of Solids
Questions
>>
JEEMAIN and NEET
>>
Physics
>>
Class11
>>
Mechanical Properties of Solids
A cylinder of mass m and density
ρ
hanging from a string is lowered into a vessel of cross. sectional area s containing a liquid of density
σ
(
<
ρ
)
until it is fully immersed. The increase in pressure at the bottom of vessel is
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q27
medium
asked
Oct 4, 2013
by
meena.p
1
answer
The velocity of small ball of mass M and density
d
1
when dropped in a container filled with glycerin becomes constant after some time. If the density of glycerin is
d
2
then force acting on the ball
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q26
medium
asked
Oct 4, 2013
by
meena.p
1
answer
For a given material , The young's modulus is 2.4 times that of rigidity modulus. It's Poisson's ratio is ::
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q25
easy
asked
Oct 4, 2013
by
meena.p
1
answer
The Comprehensibility of water is
5
×
10
−
10
m
2
/
N
. It is subjected to a pressure of
15
M
p
a
. The fraction decrease in volume will be
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q24
easy
asked
Oct 4, 2013
by
meena.p
1
answer
The volume of solid rubber ball when it is carried from surface of 200 m deep lake decreases by
0.1
%
The value for bulk modulus elasticity of rubber will be
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q23
easy
asked
Oct 4, 2013
by
meena.p
1
answer
A steel wire of uniform cross- section of
2
m
m
2
is heated upto
50
∘
and clamped rigidly at two ends. If the temperature of wire falls to
30
∘
then change in tension in wire will be , if coefficient of linear expansion of steel is
1.1
×
10
−
5
/
∘
C
and
Y
=
2
×
10
11
N
/
m
2
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q22
easy
asked
Oct 3, 2013
by
meena.p
1
answer
Work done in increasing the length of
1
m
long wire of cross-sectional area
1
m
m
2
through
1
m
m
is
y
=
2
×
10
11
N
/
m
2
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q21
easy
asked
Oct 3, 2013
by
meena.p
1
answer
Two wire are made of same material and have same volume However wire 1 has cross-sectional area A and wire 2 has cross-sectional area 3A. If length of wire 1 is increased by
Δ
x
on applying force F, how much force is needed to stretch wire 2 by same amount
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q20
medium
asked
Oct 3, 2013
by
meena.p
1
answer
Excess pressure inside one soap bubble is three times that inside second soap bubble. Find the ratio of volume of first bubble to second.
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q19
medium
asked
Oct 3, 2013
by
meena.p
1
answer
A capillary of shapes as shown is dipped in a liquid. Contact angle between liquid minisues is to be neglected . T is surface tension of liquid, r is radius of meniscus g is acceleration due to gravity
ρ
is density of the liquid then height h in equillibrium is
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q18
medium
asked
Oct 3, 2013
by
meena.p
1
answer
As square box of water has a small hole located in one of the bottom corner. When the box is full and sitting on level surface complete opening of the hole results in a flow of water with speed
v
0
.
When box is half empty, it is lilted by
45
∘
. So that the hole is at lowest position. Now the water will flow with speed of
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q17
medium
asked
Oct 3, 2013
by
meena.p
1
answer
A cylindrical vessel filled with water is released on an in inclined plane of angle
θ
as shown. The coefficient of friction of surfaces is
(
μ
(
<
tan
θ
)
. Then the contact angle made by the surface of water with the incline is
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q16
medium
asked
Oct 3, 2013
by
meena.p
1
answer
Velocity of the liquid coming out of a small hole of u vessel containing two different liquids of density
2
ρ
ans
ρ
as shown is
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q15
medium
asked
Oct 3, 2013
by
meena.p
1
answer
A steel wire
1.5
m
long and radius
1
m
m
is attached with a load of
3
K
g
at one end and the other end of he wire is fixed. It is wirled in a vertical circle with frequency
2
H
z
. find the elongation of the wire when the weight is at the lowest position.
[
Y
=
2
×
10
11
N
/
m
2
g
=
10
m
/
s
2
]
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q14
medium
asked
Oct 3, 2013
by
meena.p
1
answer
The bulk modulus of elasticity of helium at 1 atmospheric pressure, assuming variation of pressure and volume is adiabatic, is
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q13
easy
asked
Oct 3, 2013
by
meena.p
1
answer
A wire breaks when subjected to a stress S. If
ρ
is the density of the material of wire, then the length of the wire. So that it breaks by its own weight is
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q12
easy
asked
Oct 3, 2013
by
meena.p
1
answer
A steel wire of uniform cross- sectional area
2
m
m
2
in heated upto
50
∘
C
and is stretched by clamping its two ends rigidly. The change in tension when the temperature falls from
50
∘
C
to
30
∘
C
is
(
α
=
1.1
×
10
−
5
C
)
(
Y
=
2.0
×
10
11
N
/
m
2
)
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q11
medium
asked
Oct 3, 2013
by
meena.p
1
answer
A wire of length L and cross-sectional area A is made of material of Young's modulus Y. The work done in stretching the wire by an amount x is given by
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q10
medium
asked
Oct 3, 2013
by
meena.p
2
answers
Four identical hollow cylindrical column of steel support a big structure of mass
50000
k
g
. The inner and outer radii of each column are 30 and 60 cm respectively. Assuming load distribution to be uniform , the compressional strain of each column is
[
y
s
t
e
e
l
=
2.0
×
10
11
N
m
−
2
]
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q9
medium
asked
Oct 3, 2013
by
meena.p
1
answer
A metal plate of cross-sectional area rests on a layer of caster oil
(
η
=
15.5
p
)
0.2
c
m
thick. Calculate the horizontal force required to move the plate with a speed of
3
c
m
/
s
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q8
medium
asked
Oct 3, 2013
by
meena.p
1
answer
The stress versus strain graph for wires of two material A and B are as shown. If
Y
A
and
Y
B
are the Young's modulus of materials then
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q7
medium
asked
Oct 3, 2013
by
meena.p
1
answer
A steel wire of
40
m
in length is stretched through
2.0
m
m
.
The cross sectional area of the wire is
2.0
m
m
2
. If young's modulus of steel is
2.0
×
10
11
N
/
m
2
the energy density of wire is
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q6
medium
asked
Oct 2, 2013
by
meena.p
1
answer
What is the work done in splitting a drop of water 1 mm radius into
10
6
droplets (surface tension of water
=
72
×
10
−
3
J
/
m
2
)
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q5
medium
asked
Oct 2, 2013
by
meena.p
1
answer
A sample of liquid has an initial volume of
1.5
l
. The volume is reduced to
0.2
m
l
. When the pressure increased by
140
R
p
a
. What is bulk modulus of liquid
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q4
medium
asked
Oct 2, 2013
by
meena.p
1
answer
The elastic energy stored in a write of young's modulus Y is
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q3
easy
asked
Oct 2, 2013
by
meena.p
1
answer
Water rises to a height of 20 mm in a capillary . If the radius of the capillary is made
1
3
rd of its precious is made then what is the new value of the capillary rise?
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q2
easy
asked
Oct 2, 2013
by
meena.p
1
answer
A tank filled with water has a hole at a certain height from its bottom. The volume of water emerging out per second from the hole does not depend on
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q1
easy
mock
asked
Oct 2, 2013
by
meena.p
1
answer
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