CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

The ratio of the radii of gyration of a circular disc about a tangential axis in the plane of the disc and of a circular ring of the same radius about a tangential axis in the plane of the ring is


A
2:1
loader
B
5:6
loader
C
2:3
loader
D
1:2
loader

Solution

The correct option is A $$\sqrt {5} : \sqrt {6}$$
$$I_{disk}$$ = $$\frac{5}{4}MR^{2}$$ = $$MK_{disk}^{2}$$

$${I_{ring}} = \frac{3}{2}M{R^2} = \ MK_{ring}^2$$

$$ = \dfrac{{{K_{disk}}}}{{{K_{ring}}}} = \sqrt {\dfrac{5}{6}} $$

Physics

Suggest Corrections
thumbs-up
 
0


similar_icon
Similar questions
View More


similar_icon
People also searched for
View More



footer-image