1. In Excel, plot d_i vs d_o for the 10 cm focal length convex lens. Save the excel file.

1. The d_i vs d_o graph levels off at a particular value. What is that value and what is the significance of this value?

1. It was mentioned in the introduction that there is a relationship between the inverses of the object and image distances. Fill in the third and fourth columns of the chart above with these inverses (1/d_o and 1/d_i).

1. Add a sheet to Excel and plot 1/d_i vs 1/d_o for the 10 cm focal length lens.

1. Is this plot linear? Draw a trendline that extends all the way to the left. Calculate a slope and a vertical intercept (i.e. y-intercept).

1. Calculate the focal length of the lens from the graph.