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Class 11 NEET Physics System of Particles and Rotational Motion
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© examsnet.com
Question : 14
Total: 109
The ratio of the radius of gyration of a thin uniform disc about an axis passing through its centre and normal to its plane to the radius of gyration of the disc about its diameter is
[NEET-2022]
2
:
1
√
2
:
1
4
:
1
1
:
√
2
Validate
Solution:
👈: Video Solution
l
1
=
M
R
2
2
k
1
=
√
l
1
M
=
R
√
2
I
2
=
M
R
2
4
k
2
=
√
I
2
M
=
R
2
k
1
k
2
=
R
√
2
R
2
=
√
2
:
1
© examsnet.com
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