Physics
General
Easy
Question
A joint is formed by two identical rods and each of mass and length in the plane as shown. Its moment of inertia about axis coinciding with is



 None of these
The correct answer is:
Related Questions to study
Maths
The area bounded by the parabola=4ay, xaxis and the straightline y=2a is
The area bounded by the parabola=4ay, xaxis and the straightline y=2a is
MathsGeneral
physics
Four balls each of radius 10 cm and mass 1 kg, 2kg, 3 kg and 4 kg are attached to the periphery of massless plate of radius 1 m. What is moment of inertia of the system about the centre of plate?
Moment of inertia of the system about the centre of plane is given by
Four balls each of radius 10 cm and mass 1 kg, 2kg, 3 kg and 4 kg are attached to the periphery of massless plate of radius 1 m. What is moment of inertia of the system about the centre of plate?
physicsGeneral
Moment of inertia of the system about the centre of plane is given by
physics
For the given uniform square lamina , whose centre is
Let the each side of square lamina is .
So, (due to symmetry)
And (due to symmetry)
Now, according to theorem of perpendicular axis,
(i)
and
(ii)
From Eqs. (i) and (ii), we get
So,
So, (due to symmetry)
And (due to symmetry)
Now, according to theorem of perpendicular axis,
(i)
and
(ii)
From Eqs. (i) and (ii), we get
So,
For the given uniform square lamina , whose centre is
physicsGeneral
Let the each side of square lamina is .
So, (due to symmetry)
And (due to symmetry)
Now, according to theorem of perpendicular axis,
(i)
and
(ii)
From Eqs. (i) and (ii), we get
So,
So, (due to symmetry)
And (due to symmetry)
Now, according to theorem of perpendicular axis,
(i)
and
(ii)
From Eqs. (i) and (ii), we get
So,
chemistry
Which is correct about the change given below
Which is correct about the change given below
chemistryGeneral
chemistry
Identify Z in the reaction
Which undergoes Cannizaro’s reaction to give Z
Identify Z in the reaction
chemistryGeneral
Which undergoes Cannizaro’s reaction to give Z
chemistry
X and Y are respectively
X and Y are respectively
chemistryGeneral
chemistry
The product A is
The product A is
chemistryGeneral
chemistry
Y is
Y is
chemistryGeneral
chemistry
For which of the following molecule significant m ¹ 0
I)
II)
III)
IV)
OH and SH groups do not cancel their dipole moment
For which of the following molecule significant m ¹ 0
I)
II)
III)
IV)
chemistryGeneral
OH and SH groups do not cancel their dipole moment
chemistry
Which one of the following will be the major product when
Is treated with dilute H_{2}SO_{4} in the presence of HgSO_{4}
Which one of the following will be the major product when
Is treated with dilute H_{2}SO_{4} in the presence of HgSO_{4}
chemistryGeneral
chemistry
The appropriate reagent (s) for the transformation
is / are
Transformation of C = O group into CH_{2} in the presence of Zn + Hg is called Clemmensen’s reduction and in the presence of NH_{2}  NH_{2}/OH^{} is called WolfKishner Reduction
The appropriate reagent (s) for the transformation
is / are
chemistryGeneral
Transformation of C = O group into CH_{2} in the presence of Zn + Hg is called Clemmensen’s reduction and in the presence of NH_{2}  NH_{2}/OH^{} is called WolfKishner Reduction
chemistry
The most suitable reagent of r the conversion of RCH_{2}OH → RCHO is
Refer to Comprehensive Review
The most suitable reagent of r the conversion of RCH_{2}OH → RCHO is
chemistryGeneral
Refer to Comprehensive Review
chemistry
Which alkali metal floats over cold water without any reaction?
4, Na, k all are less denses them water among these first group Li is very less reactive
Which alkali metal floats over cold water without any reaction?
chemistryGeneral
4, Na, k all are less denses them water among these first group Li is very less reactive
physics
The radius of germanium () nuclide is measured to be twice the radius of . The number of nucleons in Ge are
Let radius of nucleus be . Then radius of germanium (Ge) nucleus will be.
Radius ofnucleus is given by
Hence,
Thus, in germanium () nucleus number of nucleons is 72.
Radius ofnucleus is given by
Hence,
Thus, in germanium () nucleus number of nucleons is 72.
The radius of germanium () nuclide is measured to be twice the radius of . The number of nucleons in Ge are
physicsGeneral
Let radius of nucleus be . Then radius of germanium (Ge) nucleus will be.
Radius ofnucleus is given by
Hence,
Thus, in germanium () nucleus number of nucleons is 72.
Radius ofnucleus is given by
Hence,
Thus, in germanium () nucleus number of nucleons is 72.
physics
The approximate nuclear radius is proportional to ( is the mass number and the atomic number)
Experimentally it is found that the volume of a nucleus is directly proportional to its mass number. From this it is concluded that the density of each nucleus is uniform, it does not depend on the size of the nucleus.
It the nucleus is assumed to be a sphere of radius and its mass number is , then volume of nucleus
Thus,
Or
the radius of nucleus is directly proportional to the cube root(or power) of its mass number A.
Aliter
Nuclear radius
It the nucleus is assumed to be a sphere of radius and its mass number is , then volume of nucleus
Thus,
Or
the radius of nucleus is directly proportional to the cube root(or power) of its mass number A.
Aliter
Nuclear radius
The approximate nuclear radius is proportional to ( is the mass number and the atomic number)
physicsGeneral
Experimentally it is found that the volume of a nucleus is directly proportional to its mass number. From this it is concluded that the density of each nucleus is uniform, it does not depend on the size of the nucleus.
It the nucleus is assumed to be a sphere of radius and its mass number is , then volume of nucleus
Thus,
Or
the radius of nucleus is directly proportional to the cube root(or power) of its mass number A.
Aliter
Nuclear radius
It the nucleus is assumed to be a sphere of radius and its mass number is , then volume of nucleus
Thus,
Or
the radius of nucleus is directly proportional to the cube root(or power) of its mass number A.
Aliter
Nuclear radius