(33%) Problem 1: Two convex lenses which share a common principal axis are separated by a distance which is greater than
Posted: Fri May 06, 2022 12:05 pm
- 33 Problem 1 Two Convex Lenses Which Share A Common Principal Axis Are Separated By A Distance Which Is Greater Than 1 (210.77 KiB) Viewed 93 times
for the first one its a real image but I'm not sure if it would be
outgoing or incoming rays. I have the right answers for the
calculations. Please let me know if anything else is needed. I'll
rate five stars for correct answers. Thank you!
Part e and Part i
Hi, Part i is the second picture. Please look carefully and read
the question.
(33%) Problem 1: Two convex lenses which share a common principal axis are separated by a distance which is greater than the sum of their focal lengths, as shown. F₁ F₁ F₂ F₂ lens 1 lens 2 Lens 1, with focal length F₁, is placed to the left. Lens 2, with focal length F2, is placed a distance L to the right of the first lens. 11% Part (a) An object is placed a distance do,1 =22.5 cm to the left of lens 1 which has focal length F₁ = 5.8 cm. Ignore the existence of lens 2 for the moment. What is the position of the image, di,1 created by lens 1? Include the sign which is consistent with standard sign conventions. di 7.876✔ Correct! 11% Part (b) Calculate the magnification, M₁, of lens 1 for the object as positioned in the previous step. Be certain to include the sign that is consistent with the standard conventions. M₁=-0.3500 M₁ -0.35 ✔ Correct! 11% Part (c) Which statement best describes the image created by lens 1? The image is real and inverted. ✓ Correct! 11% Part (d) Lens 2 is placed a distance L = 20.0 cm to the right of lens 1, and the image of lens 1 becomes the object of lens 2. Calculate the object distance, do,2, relative to lens 2. Be certain to include the sign as consistent with the standard sign conventions. do,2 = 12.124 do2 = 12.12 ✓ Correct! ▷ A 11% Part (e) Which statement best describes the object for lens 2? O Grade Summary Deductions 0% O Potential 100% The object is a virtual object because the outgoing rays diverge. The object is a virtual object because the incoming rays converge. The object is a real object because the incoming rays converge. The object is a real object because the outgoing rays diverge. O Submissions O Attempts remaining: 3 (33% per attempt) detailed view Submit Hint Feedback I give up! Hints: 1 for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback. -A ray diagram is very useful. When an intermediate image becomes an object, compare and contrast the behavior of the rays with a simple object in an ordinary single-lens problem.
▷ A 11% Part (i) Which statement best describes the final image formed by the two-lens system? O O The final image is real, and it is inverted as compared to the original object. The final image is virtual, and it is inverted as compared to the original object. The final image is virtual, and it is upright as compared to the original object. The final image is real, and it is upright as compared to the original object. O Submit Hint Feedback I give up! Hints: 1 for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback. -A ray diagram is strongly encouraged. Could the final image be projected on a screen or be detected by sensors at the image location? Compare the appearance of the final image to the original object. Grade Summary Deductions 0% Potential 100% Submissions Attempts remaining: 3 (33% per attempt) detailed view