Figure 2

\(f^{\prime}\left( \eta \right)\) versus \(\beta\). When \(\phi_{1} = \phi_{2} = 0.01,\) \(Q = 0.1,\) \(S = 0.2,\) \(S_{2} = 0.2,\) \(S_{1} = 0.1,\) \(S_{3} = 0.1,\) \(A = 0.3,\) \(\omega = 0.3,\) \(Sc = 0.7,\) \(\tau = 0.4,\) \(Pe = 0.3,\) \(Lb = 0.1.\)