If a vector field is given by kr2 r̂, where r̂ is the unit vector in the radial direction and k is a constant, then the divergence of the vector field (∇ · A) is:

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?