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JEE Main Physics Class 11 Oscillations Part 2 Questions
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© examsnet.com
Question : 44
Total: 76
Two bar magnets oscillate in a horizontal plane in earth's magnetic field with time periods of
3
s
and
4
s
respectively. If their moments of inertia are in the ratio of
3
:
2
, then the ratio of their magnetic moments will be:
[27-Jul-2022-Shift-1]
2
:
1
8
:
3
1
:
3
27
:
16
Validate
Solution:
T
=
2
π
√
I
MB
H
T
1
T
2
=
2
π
√
I
1
M
1
B
H
2
π
√
I
2
M
2
B
H
=
3
4
√
I
1
I
2
×
M
2
M
1
=
3
4
√
I
1
I
2
×
√
M
2
M
1
=
3
4
√
3
2
×
√
M
2
M
1
=
3
4
3
2
×
M
2
M
1
=
9
16
M
1
M
2
=
8
3
© examsnet.com
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