Fig. 5

\(f^{\prime}(\eta )\) versus m. Taking \({\psi _1}=0.03\), \({\psi _2}=0.01\), \(\varpi =0.3\), \({S_c}=1.2\), \({N_r}=1.1\), \({{\text{B}}_{\text{i}}}=0.22\), \({K_r}=0.1\), \({K_s}=0.2.\)

\(f^{\prime}(\eta )\) versus m. Taking \({\psi _1}=0.03\), \({\psi _2}=0.01\), \(\varpi =0.3\), \({S_c}=1.2\), \({N_r}=1.1\), \({{\text{B}}_{\text{i}}}=0.22\), \({K_r}=0.1\), \({K_s}=0.2.\)