A thin rectangular magnet suspended freely has a period of oscillation equal to 
. Now it is broken into two equal halves (each having half of the original length) and one piece is made to oscillate freely in the same field. If its period of oscillation is 
, then ratio 
is
A
B
C
2
Text Solution
Verified by ExpertsThe correct answer is:
C
When the magnet is divided into 2 equal parts, the magnetic dipole movement
pole strength × length 
and moment of inertia
Time period 
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