Determine the mechanical force required to separate two magnetic surfaces with a contact area of 4π cm2 when the magnetic flux density across the surface is 1 Wb/m2 (Take μ0 = 4π × 10-7 H/m).

Which of the following territories was annexed by Lord Dalhousie under the pretext of misgovernance, and not directly through the Doctrine of Lapse?

What was the primary stated reason for the Partition of Bengal in 1905 by Lord Curzon?