Questions
If a disc of mass m and radius r is reshaped into a ring of radius 2r, the mass remaining the same, the radius of gyration about centroidal axis perpendicular to plane goes up by a factor of
detailed solution
Correct option is C
Radius of gyration of disc, KD=IDm=12mr2m=r2Radius of gyration of ring, KR=IRm=m(2r)2m=2r∴ KRKD=22Talk to our academic expert!
Similar Questions
Circular disc X of radius R is made from an iron plate of thickness t, and another disc Y of radius 4 R is made from an iron plate of thickness..Then, the relation between the moment of inertia IX, and Iy is
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
free study material
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests
