Reply..
Q.38. If the period of oscillation of freely suspended bar magnet in earth's horizontal field H is 4 sec. When another magnet is brought near it, the period of oscillation is reduced to 2s. The magnetic field of second bar magnet is
(a) 4H
(b) 3H
(c) 2H
(D) 3 H

Dear student


Regards
 

  • -16
What are you looking for?