A conductivity loop in the form of a circle is placed in a uniform magnetic field with its plane perpendicular to the direction of the field. An e.m.f will be included in the loop if

Question

$\begin{array}{1 1} \text{it is translated parallel to itself } \\\text{it is rotated about one of its diameter } \\ \text{it is rotated about its own axis which parallel to the field } \\ \text{the loop is deformed from the original shape } \end{array}$