\fLab report on Exp. 10 1. Tables 1 and 2 should be included in your Exp. 10 lab report. 2. Your Graph #1 of plot and fitting in "Data analysis" of Exp. 10.1 should be included in your Exp. 10 lab report. 3. It is required that the answers to the "questions and exercises" should be included in your lab report. (Your Graph #2 and Table 3 in question 2, as well as Graph #3 in question 3 should be included). 4 . The required other contents and format for your lab report can be found in the syllabus. 5. You can tear those pages out of the lab manual as a part of your lab report, which contain measured (raw) data and analyzed data, answers to questions. The data sheets must be checked and signed by your lab TA. Questions and exercises 1. The observation result in Exp 10.1 shows that for a fixed separation between the object and the screen (i.e., do + dio = ( is fixed), there are two positions of the converging lens at which the images formed on the screen are in focus (clear images). Use Eq. (1) to explain the observation result. I (nenad2. Use graphic method to verify the image position (di ) and size ( h; ) in Table 1, and determine the nature of the image: erect or inverted, enlarged or reduced. (a) Refer to Fig. 3 (a) in the lab manual, draw a converging lens with an optic axis on a sheet of white paper. The converging lens in Fig. 3 (a) can be simplified as shown in Graph #2. Converging lens Optic axis Graph #2 Ray diagram for image formed by a converging lens (b) To make a ray diagram showing the formation of the image we need to use the following data in Table 1: h, fexp , and the value of do in the row #6 of the column "Calculation" in Table 1. Note: The top row of Table 1 is row #1. (c) Make a scale drawing (use 1 mm to represent 1 cm) to locate the positions of the two focal points (Fi & F2) using the value of fexp , also locate the object position using the d, value. Then, at the object position draw the object with height h, using the same draw scaling. (d) Draw a ray diagram using two principal rays: Parallel ray and Central ray similar to that in Fig. 3 (a) in the lab manual to find the image formed by the converging lens. (e) Label the quantities do, di, ho, h; in your ray diagram. (f) Your complete ray diagram in Graph #2 will be a part of your lab report. (g) Measure the values of image position and size ( dio & h; ) from your Graph #2 and record the data in Table 3. (h) Calculate m = h; / h, using the measured h; and record it in Table 3. (i) From your Graph #2 to determine the nature of the image. Erect or inverted? Enlarged or reduced? Record above results in Table 3. Table 3 The formation of the image from the ray diagram in your Graph #2. Data from row #6 of Table 1 Measured Data from your Graph #2 Nature of the image Erect ( ) or inverted ( ) hi (cm) dio (cm) hi (cm) dio ( cm ) | m = hilh Enlarged ( ) or reduced ( 107Data from row #le of table ! Lens Position on image Size Position on the bench the bench PL( Cm) cm ] P, (cm) 8.5 cm 28 cm 89 cm