Data Table 1 Lens A Focal Length (cm) B Image Distance (cm) 20.4 10.4 fa= fo= 20.9 10-4 Data Table 2 Calculations Table

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Data Table 1 Lens A Focal Length Cm B Image Distance Cm 20 4 10 4 Fa Fo 20 9 10 4 Data Table 2 Calculations Table 1 (52.52 KiB) Viewed 22 times

Data Table 1 Lens A Focal Length Cm B Image Distance Cm 20 4 10 4 Fa Fo 20 9 10 4 Data Table 2 Calculations Table 2 (39.06 KiB) Viewed 22 times

Data Table 1 Lens A Focal Length (cm) B Image Distance (cm) 20.4 10.4 fa= fo= 20.9 10-4 Data Table 2 Calculations Table 2 P (cm) 9 (cm) 7. (cm) ay (cm) % Diff 2021-5 16.9 30 46 50 13.6 fe (cm) 10.4 10-8 10.9 10.7 10.7 0.09 0.7 Data and Calculations Table 3 (Lenses A & B) q (p=00) P. 9 fas p=00 fp & q fan theo % Diff Data and Calculations Table 4 (Lenses B & C) 9 (p=00) P 9 foc p= 0 fecp & 9 Foc fo 24.7 38.5 59.5 24.7 23. 9 |24-05 - 18.7
2. Take lens C between your thumb and index finger. Is it thinner or thicker at the center of the lens than at the edge? Take lens B between your thumb and index finger. Is it thinner or thicker at the center of the lens than at the edge? From this information alone, what can you conclude about lenses C and B? TRORRO 3. Consider the percentage difference between the two measurements of the focal length of lens B. Express af as a percentage of . Is the percentage difference between the two measurements less than the percentage standard error? 4. Compare the agreement between the experimental and theoretical values of fag, the focal length of lenses A and B combined. Do these data suggest that Equation 4 is a valid model for the equivalent focal length of two lenses in contact?