A bar magnet is oscillating in a uniform magnetic field of induction 0.4 × 10-5 T. When the frequency of the oscillating bar magnet is double due to increasing magnetic field, the increase in magnetic induction is (a) 1.2 x 104 T (c) 1.2 x 10-5 T (b) 1.6 x 10-4 T (d) 1.6 x 10-5T
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