Question

(6%) Problem 6: A student is getting her picture taken by a digital camera. The student is h= 1.85 m tall and she stands do = 2.5 m in front of the camera lens which has a focal length of f= 0.022 m. Randomized Variables ho = 1.85 m do = 2.5 m f= 0.022 m A 25% Part (a) Input an expression for the resulting image distance, dz. Grade Summary Deductions 0% 100% a B ( 7 8 9 HOME addom^ 4 5 6 = f g h * 1 2 3 = i j k + - 0 . END NO BACKSPACE DEL CLEAR Submissions Attempts remaining: 12 5% per attempt) detailed view Hint Feedback I give up! Submit Hints: 1% deduction per hint. Hints remaining: 2 Feedback: 2% deduction per feedback. A 25% Part (b) By evaluating the numerical distance, find out if the image is real or virtual. HA 25% Part (c) Numerically, what is the magnification of the system? A 25% Part (d) Numerically, what is the image height?

Answer 1

Expression for lens fromula, YF= rdt bi do object position di= image position di = 1 + - 1 1 - pe focal length ③ di = Edo do-f - 0.0224 2.5 2.5-0.22 di = 0.022 m 7 image is real! magnification = -di do M -0022 2.5 [m=-8. 8x103 magnification - hilno hi= mho = -0.0163m -ve me ans Inverted,