NEET2002PhysicsMagnetic Properties of MatterActual
Two bar magnets having geometry with magnetic moments M and 2 M are first placed in such a way that their similar poles are same side then its time period of oscillation is T₁ . Now the polarity of one of the magnet is reversed then the time period of oscillation is T₂ , so:
Options
- AT₁ < T₂
- BT₁=T₂
- CT₁>T₂
- DT₂=
Correct answer
A. T₁ < T₂
Step-by-step solution
We can write T=2 1 M B T 1 M Case I : M₁=2 M+M Case II : M₂=2 M-M aligned & T₁ T₂ = M 3 M = 1 3 & T₂= 3 T₁ aligned