question_answer

Two rigid bodies A and B rotate with rotational kinetic energies \[{{E}_{A}}\] and \[{{E}_{B}}\] respectively. The moments of inertia of A and B about the axis of rotation are \[{{I}_{A}}\] and \[{{I}_{B}}\] respectively. If \[{{I}_{A}}=\frac{{{I}_{B}}}{4}\] and \[{{E}_{A}}=100={{E}_{B}},\] the ratio of angular momentum \[({{L}_{A}})\] of A to the angular momentum \[({{L}_{B}})\] of B is

A)  25                                         

B)  5/4

C)  5                            

D)         1/4