Could i please get some help with this, it would mean a lot. Calculation area of the lab.

One lens with focal length, f= 100mm Experiment Calculations Changing do Measured Calculated Measured Measured Calculated 180 mm 140 mm 19mm 14 mm \fThe object distance, focal length and image distance for a thin lens are related by thin lens equation. 1 1 1 _+_=_ an d. f I {2) do f 2 d, = (5) do - f2 Equation 5 allows us to find the final image distance value for the two-lens system. The orientation and size of the final image can be found as follows: The total magnification produced by a lens system is equal to the product of the magnifications produced by each lens individually. Using Equation 3, we find that the first lens produces the magnification M = - "i . Similarly, the second lens causes the magnification M di The total magnification of the system, then, is m = MM', showing that the final image is inverted if m0, and changed in size by a factor of m compared with the original object. This value must be in agreement with the results obtained in experiment where the magnification can be found from formulae: M = M' hi' ho hot m = MM' and ho' = hi.