Activity II: Thin Lenses In this activity you will investigate the formation of an image with a converging lens and from the data determine the focal length of the lens. The experimental set up consists of an optics track, a light source, a screen, and a converging lens. The object is a cross consisting of two arrows at the opening of the light source. 1. Watch the video at: https://www.pasco.com/resources/video/Xbqtj54b3fI In the data collection process, the lens holder and the screen are moved to different positions on the track until the image on the screen is sharp. 2. Open the Capstone data file and copy the data into Excel. Create a table similar to table 4. Table 4: Lens data Trial Object Distance Image Distance 1/do (m-1) 1/di (m-1) (m) (m) 1 0.240 0.184 4.17 5.43 2 0.340 0.150 2.94 6.67 3 0.440 0.136 2.227 7.35 4 0.540 0.130 1.85 7.69 5 0.640 0.124 1.56 8.06 3. Calculate the inverse of each object distance and image distance and record the results in the table. 4. Plot a graph of 1/do versus 1/di. Be sure to label both axes with the correct scale and units. Insert a line of best fit and display the equation. 5. What is the experimental value for the focal length of your lens? How did value from the data? you determine this 6. What are factors that might have caused error in your measured values? 7. Calculate the percent error between your experimental value and the actual value.