Two thin lenses of focal lengths 86 mm and -92 mm are placed in contact. What...
Two thin lenses of focal lengths 86 mm and -92 mm are placed in
contact. What power must a third lens have so that when the three
are in contact the combination has a focal length of -45 mm?
ANS...... diopters
Homework Answers
Add Answer to:
Two thin lenses of focal lengths 86 mm and -92 mm are placed in
contact. What...
Two thin lenses, with focal lengths of 25.0 cm and -30.0 cm are placed in contact...
Two thin lenses, with focal lengths of 25.0 cm and -30.0 cm are placed in contact in an orientation so that their optic axes coincide. What is the focal length of the two in combination?
10. Two lenses are in contact. One of the lenses has a focal length of +10.0cm...
10. Two lenses are in contact. One of the lenses has a focal length of +10.0cm when used ale When the two are in combination, an object 20.0cm away from the lenses forms a reali 40.0cm away from the lenses. What is the focal length of the second lens? Show your w 9. One lens has a focal length of +15.0 cm. A second lens of focal length +20.0cm is placed in contact with the first lens. What is the...
Three thin lenses with focal lengths of .1m, .2m, .3m are placed next to each other....
Three thin lenses with focal lengths of .1m, .2m, .3m are placed next to each other. What is the equivalent focal length of a single lens?
When two thin lenses are in contact, the combination may still be considered as a thin...
When two thin lenses are in contact, the combination may still be considered as a thin lens. The focal distance of the combination, fc, is given by 1 1 1 + eq. (1) fcff2 where fi and f are the focal distances of the two lenses in contact. Assume two converging lenses (10 cm and 20 cm focal distances) are in contact and da = 15 cm. a) Calculate the image distance (d) and magnification (m.) for the combination. (2...
Two positive thin lenses are separated by a distance of d. The focal lengths of the...
Two positive thin lenses are separated by a distance of d. The focal lengths of the lenses are f_1 = 10 cm and f_2 = 20 cm. The desired throw of the system, the object to image distance, is T = 80 cm and the desired magnification is M = -1.1. a) Use what you know about the conjugate matrix for a two lens system to solve to the distance between the lenses. Express your answer in cm. b) Where...
Two thin lenses with focal lengths of magnitude 18.0 cm, the first diverging and the second...
Two thin lenses with focal lengths of magnitude 18.0 cm, the first diverging and the second converging, are placed 11.00 cm apart. An object 3.70 mm tall is placed 4.75 cm to the left of the first (diverging) lens. (a) Where is the image formed by the first lens located? (b) How far from the object is the final image formed? (c) Is the final image real or virtual? (d) What is the height of the final image? (e) Draw...
2. An object is placed in front of two thin symmetrical convex lenses with focal lengths...
2. An object is placed in front of two thin symmetrical convex lenses with focal lengths of F1 +10 cm and F25 cm, with a lens separation of D-42 cm. The object is 15.0 cm from lens 1. Where is the final image of the object and what is its magnification? (10 points) [Please use reverse side if you need more room. Circle the correct descriptors: real virtual enlarged reduced erect inverted Answer: X final = ML =
Two converging lenses, with focal lengths of f1 = 10.0 cm and f2 = 15.0 cm,...
Two converging lenses, with focal lengths of f1 = 10.0 cm and f2 = 15.0 cm, respectively, are placed 40.0 cm apart. An object is placed 60.0 cm in front of the first lens. (a) Calculate the position, with respect to the second lens, of the final image formed by the combination of the two lenses. (b) Calculate the overall magnification of the final image formed by the combination of the two lenses.
A person sees clearly wearing eyeglasses that have a power of -3.00 diopters when the lenses...
A person sees clearly wearing eyeglasses that have a power of -3.00 diopters when the lenses are 1.60 cm in front of the eyes. (a) What is the focal length of the lens? cm (b) is the person nearsighted or farsighted? O nearsighted farsighted (e) If the person wants to switch to contact lenses placed directly on the eyes, what lens power should be prescribed? diopters
Two identical converging lenses of focal length 100 mm are placed 400 mm apart, and an...
Two identical converging lenses of focal length 100 mm are placed 400 mm apart, and an object 40 mm tall is placed 230 mm to the left of the left lens. Part B Is the image formed by the right lens inverted or upright?
10. Two lenses are in contact. One of the lenses has a focal length of +10.0cm when used ale When the two are in combination, an object 20.0cm away from the lenses forms a reali 40.0cm away from the lenses. What is the focal length of the second lens? Show your w 9. One lens has a focal length of +15.0 cm. A second lens of focal length +20.0cm is placed in contact with the first lens. What is the...
When two thin lenses are in contact, the combination may still be considered as a thin lens. The focal distance of the combination, fc, is given by 1 1 1 + eq. (1) fcff2 where fi and f are the focal distances of the two lenses in contact. Assume two converging lenses (10 cm and 20 cm focal distances) are in contact and da = 15 cm. a) Calculate the image distance (d) and magnification (m.) for the combination. (2...
2. An object is placed in front of two thin symmetrical convex lenses with focal lengths of F1 +10 cm and F25 cm, with a lens separation of D-42 cm. The object is 15.0 cm from lens 1. Where is the final image of the object and what is its magnification? (10 points) [Please use reverse side if you need more room. Circle the correct descriptors: real virtual enlarged reduced erect inverted Answer: X final = ML =
A person sees clearly wearing eyeglasses that have a power of -3.00 diopters when the lenses are 1.60 cm in front of the eyes. (a) What is the focal length of the lens? cm (b) is the person nearsighted or farsighted? O nearsighted farsighted (e) If the person wants to switch to contact lenses placed directly on the eyes, what lens power should be prescribed? diopters
Most questions answered within 3 hours.
-
For a 2-Level design, with 8 factors, a recommended screening
design model is:
a. Taguchi L12...
asked 33 minutes ago -
1. Define a function in python that returns the sum of the
following 4 lists. Remember...
asked 24 minutes ago -
Elspeth, associate research specialist for a marketing research
firm in a large Midwestern city, had just...
asked 23 minutes ago -
If domestic savings are insufficient to finance domestic private
investment and exports are greater than imports,...
asked 39 minutes ago -
Q.4.
Use the format in Exhibit 9-1 to compute the ending LIFO
inventory and cost of...
asked 45 minutes ago -
Discuss the different receiving and dispatch equipment required
for uploading and loading different types of material...
asked 49 minutes ago -
Which of the following is true for simultaneous testing?
a. Net specificity is greater than the...
asked 53 minutes ago -
Discuss the importance of homologous recombination and
transposition in natural horizontal gene transfer and evolution. Be...
asked 57 minutes ago -
Brittle material has the properties Sut = 30 kpsi and Suc = 90
kpsi. Using the...
asked 56 minutes ago -
*
write about Plastic recycling statistics ( Plastic recycling rate )
last two years , i...
asked 55 minutes ago -
The activation energy for a given reaction is 50.3 kJ/mol. If
the rate constant for the...
asked 1 hour ago -
An entomologist discovers a dung beetle rolling a ball of dung
along the ground, and decides...
asked 3 hours ago