Let I1 and I2 be the moments of inertia of two bodies of identical geometrical shape, the first made of aluminum and the second of iron.
A. I1 < I2
B. I1 = I2
C. I1 > I2
D. relation between I1 and I2 depends on the actual shapes of the bodies.
Density of iron is 7.874 g/cm3 and aluminum is 2.74 g/cm3.
Hence I1 <I2
Rate this question :
Why does a solid sphere have smaller moment of inertia than a hollow cylinder of same mass and radius, about an axis passing through their axes of symmetry?Physics - Exemplar
With reference to Fig. 7.6 of a cube of edge an and mass m, state whether the following are true or false. (O is the centre of the cube.)
Physics - Exemplar
Let I1 and I2 be the moments of inertia of two bodies of identical geometrical shape, the first made of aluminum and the second of iron.HC Verma - Concepts of Physics Part 1
A circular disc A of radius r is made from an iron plate of thickness t and another circular disc B of radius 4r is made from an iron plate of thickness t/4. The relation between the moments of inertia IA and IB isHC Verma - Concepts of Physics Part 1
If the ice at the poles melts and flows towards the equator, how will it affect the duration of day-night?HC Verma - Concepts of Physics Part 1
A closed cylindrical tube containing some water (not filling the entire tube) lies in a horizontal plane. If the tube is rotated about a perpendicular bisector, the moment of inertia of water about the axisHC Verma - Concepts of Physics Part 1
Equal torques act on the discs A and B of the previous problem, initially both being at rest. At a later instant, the linear speeds of a point on the rim of A and another point on the rim of B are and respectively. We haveHC Verma - Concepts of Physics Part 1
A body having its center of mass at the origin has three of its particles at (a,0,0) (0, a,0), (0,0, a). The moments of inertia of the body about the X and Y axes are
0.2 kgm2 each. The moment of inertia about the Z-axis
HC Verma - Concepts of Physics Part 1
The moment of inertia of a uniform semicircular wire of mass M and radius r about a line perpendicular to the plane of the wire through the center isHC Verma - Concepts of Physics Part 1
A. Prove the theorem of perpendicular axes.
(Hint: Square of the distance of a point (x, y) in the x–y plane from an axis through the origin and perpendicular to the plane is x2 + y2).
B. Prove the theorem of parallel axes.
NCERT - Physics Part-I