Seven identical circular planar disks, each of mass M and radius R are welded symmetrically as shown. The moment of inertia of the arrangement about the axis normal to the plane and passing through the point P is :
A
`(181)/(2)"MR"^(2)`
B
`(19)/(2)"MR"^(2)`
C
`(55)/(2)"MR"^(2)`
D
`(73)/(2)"MR"^(2)`
Text Solution
Verified by Experts
The correct Answer is:
A
Topper's Solved these Questions
JEE MAINS
JEE MAINS PREVIOUS YEAR ENGLISH|Exercise Chemistry|1 Videos
JEE MAIN
JEE MAINS PREVIOUS YEAR ENGLISH|Exercise All Questions|452 Videos
JEE MAINS 2020
JEE MAINS PREVIOUS YEAR ENGLISH|Exercise PHYSICS|250 Videos
Similar Questions
Explore conceptually related problems
Three rings, each of mass P and radius Q are arranged as shown in the figure. The moment of inertia of the arrangement about YY' axis will be
Four rings each of mass M and radius R are arranged as shown in the figure. The moment of inertia of the system about YY' will be
Three rings each of mass M and radius R are arranged according to the figure. The moment of inertia of this system about an axis XX' on its plane would be
Consider a uniform square plate of of side and mass m . The moment of inertia of this plate about an axis perpendicular to its plane and passing through one of its corners is -
Three identical rings of masses m each and radius r are kept in contact as shown in Fig. Find the moment of inertia of the system about a common tangent.
The moment of inertia of a cube of mass M and edge length a about an axis passing through one of its edge is
From a disc of radius R, a concentric circular portion of radius r is cut out so as to leave an annular disc of mass M. The moment of inertia of this annular disc about the axis perpendicular to its plane and passing through its centre of gravity is
From a circular disc of radius R and mass 9M, a small disc of radius R/3 is removed as shown in figure. The moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc and passing through O is
From a circular disc of radius R and mass 9 M , a small disc of radius R/3 is removed from the disc. The moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc and passing through O is
The moment of inertia of a ring of mass M and radius R about PQ axis will be
JEE MAINS PREVIOUS YEAR ENGLISH-JEE MAINS-Chemistry