Hello, please answer and explain :

You are building a robot and you need a lens for its eye. The focal length of the lens must be close to 15 cm. You order three acrylic lenses and have to decide which one has the right focal length. The manufacturer's specifications give you the radii of curvature shown in Table 1.

Table 1 - Radii of curvature of lenses Surface 1 Surface 2 Type Rayon Type Rayon IRil IR21 Lentille #1 convexe 24 cm convexe 16 cm Lentille #2 convexe 28 cm convexe 28 cm Lentille #3 convexe 16 cm convexe 12 cm350 340 330 30 380 310 in 1 Figure 1 - Deflection of a laser beam at an incidence angle of 45' through a rectangularGraph 1 - sine, vs sine; Data Set Sin & Sin 1 0 2 8. 087 0.052 8.174 0.122 0.259 8:174 8.342 0.242 0. 423 0.293 0.5 0.342 0.6 - 0.574 8.391 8.643 8.439 10 0.787 0.485 11 8.766 0.515 12 8.819 0.559 13 0.867 8.588 e.985 0.616 Linear Fit for: Data Set | Sinus de l'angle de refraction Sin er 0.939 8.643 Sin ir s musb 0.965 8.656 m (Slapa): 0.8799 4/- 0.003226 / 0.985 8.669 b (Y-Intercept): 6.0009312 -/- 6:008144 Comelation: 0.99PE RUSE: 0.004178 . 0.4 Sinus de l'angle de refraction, Sin er (") 0.2- 0.2 0.4 0.8 (4x:0.985 Ay:0.000) Sinus de l'angle d'incidence , Sin & (")