Two-Lens Optical System Simulation
Convex Lens (f₁)
30 cm
Concave Lens (f₂)
-20 cm
Lens Separation (d)
8 cm
Optical Parameters
Effective Focal Length
216 cm
First Image Distance
120 cm
Final Image Distance
-220 cm
Magnification
3×
For parallel beam on convex lens:
1/v₁ = 1/f₁ ⇒ v₁ = 30cm
1/v₂ = 1/(v₁-d) + 1/f₂ ⇒ v₂ = -220cm
Effective focal length = |v₂| - d/2 = 216cm
