Question

Two thin lenses of focal lengths f₁ and f₂ are in contact and coaxial. Its power is same as power of a single lens given by
(a) $\frac{f_{1}+f_{2}}{f_{1}f_{2}}$
(b) $\sqrt{\bigg \lgroup \frac{f_{1}}{f_{2}}\bigg \rgroup }$
(c) $\sqrt{\bigg \lgroup \frac{f_{2}}{f_{1}}\bigg \rgroup }$
(d) $\frac{f_{1}+f_{2}}{2}$

Answer 1

For a Given system $\dot{x}_1 = x_1^2+x_2-2, \dot{x}_2=x_1+x_2$ Explain clearly Input - Output linearization and Input state linearization.