Verified Solution • 2025–26 Session moderate

QAIPM-2002-Ph-2812: NEET 2002 Physics - Class 12 AIPM-2002-Ph-2812 Solution: Two bar magnets having same geometry with magnetic moments M…

Two bar magnets having same geometry with magnetic moments M and 2M, are firstly placed in such a way that their similar poles are same side then its time period of oscillation is

T_1

. Now the polarity of one of the magnet is reversed then time period of oscillation is

T_2

, then

Multiple Choice Options

A $T_1>T_2$
B $T_2=\infty$
C $T_1<T_2$
D $T_1=T_2$

Step-by-Step Verified Solution

Time period, T = 2 � I M B _ T _ 1 M M 1 =2M + M = 3M M 2 = 2M � M = M T 1 T 2 = M 3 M = 1 3 _ T 2 = 3 T _ T 1 < T 2

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