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