The score on this take home test will form 20% of the test 3 grade. This take ho
ID: 463551 • Letter: T
Question
The score on this take home test will form 20% of the test 3 grade. This take home test is open book and open notes but you may not work with each other. Each problem is worth, so you could score 24/20. Problem 1. Indicate the single lens type (converging or diverging) and object position that will lead to the following kind of images. If no single lens system can produce the particular image indicate that this is so. To ensure that you know how to format your answer, I provide the answer to parts C) and D). virtual, enlarged, upright image. real, inverted image that is the same size as the object. virtual, reduced in size, upright image. Diverging lens, object anywhere. real, upright, enlarged image. Answer: No single lens can produce this image. tiny inverted image very near focal point. real, reduced in size, inverted image. virtual, enlarged, inverted image. huge image at "infinity". real, enlarged, inverted image. Using equations, find the image position and magnification when an object is placed 12 cm from a converging lens of focal length 6 cm. B) Do a ray trace to illustrate the image formation in the setup of). Be sure to use three rays in the ray trace., , 4L r to Q in a camera is 1 5 cm. If the camera is to take pictures of objects X lay0 fro! the camera, through what range of lens to him distances must the camera be able to adjust?Explanation / Answer
a. Annual worth of the costs associated with new truck = Net Present Value of the Total cost of ownership / Useful life in years = 101105/10 = 10110.5
Formula for calculating NPV = CF/(1+r)^t, where r isthe interest rate and t is time period, for year 5, t = 5
b. At an annual operating cost of 13066 for the curent truck, I would be indifferent between retaining the current vehicle or buyind a new one.
The number is determined by finding the average annual cost of existing truck and equating it with that of new truck
7% Year Cost NPV 0 50000 50000 1 8000 7477 2 8000 6988 3 8000 6530 4 8000 6103 5 8000 5704 6 8000 5331 7 8000 4982 8 8000 4656 9 8000 4351 10 -2000 -1017 101105