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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 pasing through centre of gravity and perpendicular to the plane is

A

0.5cm

B

2.5cm

C

3.54cm

D

6.54cm

Text Solution

Verified by Experts

The correct Answer is:
C
`K_(c )=(R )/(sqrt(2))`
`= (5)/(sqrt(2))=5xx0.707 = 3.54 cm`.
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