20) A lens is made with a focal length of -40 cm using a material with...
Part A A lens is made with a focal length of -40 cm using a material with index of refraction 1.50. A second lens is made with the SAME GEOMETRY as the first lens, but using a material having refractive index of 2.00. What is the focal length of the second lens?
*Question 214: Thin Convex Lens/Magnification A thin convex lens has focal length 20 cm. An object is placed 40 cm from the lens. What is the magnification of the image? Select one: O a. 1 (the object stays the same size and is not inverted.) O b.-1 (The object stays the same size and is inverted.) O c. 40 cm O d. -40cm o e.-2 *Question 183: Light Properties Which of the following is not true: Select one: O a....
The crystalline lens of the human eye is a double-convex lens made of material having an index of refraction of 1.44 (although this varies). Its focal length in air is about 8.00 mm , which also varies. We shall assume that the radii of curvature of its two surfaces have the same magnitude. (Note: The results obtained in the parts A, B and C are not strictly accurate, because the lens is embedded in fluids having refractive indexes different from...
A converging lens with a focal length of 40 cm and a diverging lens with a focal length of -40 cmare 150 cmapart. A 1.0-cm-tall object is 60 cmin front of the converging lens. Ch 19 HW Problem 19.41 8 of 8 Part A Calculate the image position Express your answer using two significant figures. Constants A converging lens with a focal length of 40 cm and a diverging lens with a focal length of -40 cm are 150 cm...
An object is placed 100 cm in front of a lens of focal length 20 cm. A second lens is placed 35 cm beyond the first, this second lens having a focal length of 8.0 cm. If the size of the object is 6.0 cm, what is the size of the final image? Draw ray diagram and apply thin lens formula
A Galilean telescope is made with a 40 cm focal length objective lens and a -10 cm focal length eyepiece. As is typical, the separation between the lenses is the sum of the focal lengths, i.e. 30 cm. Usually this telescope would be used to view far distant objects, but suppose the object viewed is only three focal lengths (120 cm) distant from the objective lens (a) On the figure above, sketch the principal rays that determine the size and location...
An object is placed 30 cm to the left of a converging lens of focal length f1= + 20 cm. A second lens sits 40 cm to the right of the first lens. The two - lens system produces an overall magnification of M = + 2.0. What is the focal length (f2) of the second lens?
A 10-cm tall object is placed 40 cm away from a lens that has a focal length of +8 cm. (a) What kind of lens is this? (b) Draw a ray diagram (c) Calculate image distance and height (I got a Di of 10 cm and a H of -2.5 but I can't match that with the diagram) (d) If you moved the lens a little to the right, the image would [ ] move to the right [ ]...
Chapter 34, Problem 041 A lens is made of a transparent material having an index of refraction of 1.40. One side of the lens is flat, and the other convex with a radius of curvature of 24.0 cm. (a) Find the focal length of the lens. (b) If an object is placed 120 cm in front of the lens, where will the image be located? (a) Number Units (b) Number Units
A converging lens with a focal length f1 = 9.00 cm is located 18.0 cm to the left of a converging lens with index of refraction of 1.52 and a radius R = 6.24 cm. An object stands 14.0 cm to the left of the first lens in the combination. Draw the Ray diagrams! (a) Locate the final image relative to the lens on the right. (b) Obtain the overall magnification. (c) Is the final image real or virtual? With...