Home
Class 12
PHYSICS
The radius of gyration of a disc of mass...

The radius of gyration of a disc of mass 100 g and radius 5 cm about an axis passing through its centre of gravity and perpendicular to the plane is

A

0.5 cm

B

2.5 cm

C

3.54 cm

D

6.45 cm

Text Solution

Verified by Experts

The correct Answer is:
C
`I=(MR^(2))/(2)=MK^(2)" "therefore K=(R)/(sqrt2)=(5)/(sqrt2)=3.54cm`
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP - 3|8 Videos

  • OSCILLATIONS

    MARVEL PUBLICATION|Exercise MCQ|368 Videos

  • SEMICONDUCTORS

    MARVEL PUBLICATION|Exercise MCQs|261 Videos

Similar Questions

Explore conceptually related problems

The radius of gyration of a disc of mass 50 g and radius 2.5 cm, about an axis passing through its centre of gravity and perpendicular to the plane is

The radius of gyration of a disc of mass 100 g and radius 5 cm about an axis pasing through centre of gravity and perpendicular to the plane is

Calculate the radius of gyration of a thin rod of mass 1kg and length 100cm about an axis passing through its center of gravity and perpendicular to its length.

Radius of gyration of a uniform circular disc about an axis passing through its centre of gravity and perpendicular to its plane is

Find the radius of gyration of a rod of mass 100 g and length 100 cm about an axis passing through its centre and perpendicular to its length.

Moment of inertia of a ring of mass M and radius R about an axis passing through the centre and perpendicular to the plane is

Calculate the moment of inertia of a ring of mass 2 kg and radius 50 cm about an axis passing through its centre and perpendicular to its plane

The radius of gyration of an uniform rod of length L about an axis passing through its centre of mass and perpendicular to its length is.

Calculate the moment of Inertia of a semicircular disc of mass M and radius R about an axis passing through its centre and perpendicular to its plane.

Find the radius of gyrational and moment of inertia of a rod of mass 100g and length 1 m about an axis passing through its centre and perpendicular to its length.