In figure (A), mass ' 2 m ' is fixed on mass ' m ' which is attached to two springs of spring constant k . In figure (B), mass ' $m$ ' is attached to two spring of spring constant ' $k$ ' and ' $2 k$ '. If mass ' $m$ ' in (A) and (B) are displaced by distance ' $x$ ' horizontally and then released, then time period $T_1$ and $T_2$ corresponding to ( $A$ ) and (B) respectively follow the relation.|