Find the focal lengths and the type of each of the following glass (n = 1.50) lenses below.
Find the focal lengths and the type of each of the following glass (n = 1.50)...
40. Figure P36.40 shows a thin glass (n = 1.50) converging lens for which the radii of curvature are R1 = 15.0 cm and R2 =-12.0 cm. To the left of the lens is a cube having a face area of 100 cm². The base of the cube is on the axis of the lens, and the right face is 20.0 cm to the left of the lens. (a) Determine the focal length of the lens. (b) Draw the image...
Two converging lenses with focal lengths of 40 cm and 20 cm are 14 cm apart. A 4.0 cm -tall object is 14 cm in front of the 40 cm -focal-length lens. Calculate the image position. Answer must be in cm (ps it is not 45.8 or 35.5) x=________cm from the object
What is the approximate magnification of a compound microscope with objective and eyepiece focal lengths of 0.30 cm and 3.6 cm, respectively, and a separation between lenses of 20 cm? a. 12 b. 20 C. 67 d. 460 A telescope has an objective lens with a focal length of 100 cm and an eyepiece of focal length 3.0 cm. What is the magnification of the telescope? a. +30 b. -33 C. +60 d. -180 20. Page 6 of 6
The Galilean Telescope. The following figure is a diagram of a Galilean telescope, or opera glass, with both the object and its final image at infinity. The image I serves as a virtual object for the eyepiece. The final image is virtual and erect (Figure 1) Part A Find the angular magnification M. Part B A Galilean telescope is constructed from two lenses. the 95.0-cm lens being used as the objective. What focal length should the eyepiece have...
An object is located to the left of two lenses that are separated by a distance of 40 cm. The object is located at p1 = 45 cm in front of the first (diverging) lens with a -30 cm focal length, as sketched by an arrow in the figure below. The final image created by the two lenses is located 8.6 cm to the right of the second lens. (a) Clearly draw in the space below at least two of...
20) 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? E) -53 cm A) -30 cm B) -80 cm C) -40 cm D) -20 cm
Find the focal length of the glass lens in the figure (Figure 1) . Take R1 = 20 cm and R2 = 49 cm.and what is the unit?
2. A sphere of glass with index of refraction n 1.7 and radius 5 cm has been cut, as shown below, to make a thin lens. The focal length of this lens is (the sign indicates converging or diverging, as usual, closest answer in cm) (a) -1.2 (b) 1.2 (c) -5.3 (d) 5.3 (e) -7.1 (f) 7.1
The focal length of a lens is inversely proportional to the quantity (n−1), where n is the index of refraction of the lens material. The value of n, however, depends on the wavelength of the light that passes through the lens. For example, one type of flint glass has an index of refraction of nr=1.572 for red light and nv= 1.615 in violet light. Now, suppose a white object is placed 21.50 cm in front of a lens made from...
A converging lens L_1 has a focal length of 10 cm. A 5cm tall object is located 15cm to the left of L_1. Construct a ray diagram indicating the position and vertical orientation of the image produced by lens L_1. Calculate this position and see that it matches your diagram. A diverging lens L_2 with a focal length of -20 cm is placed 40cm on the right of lens L_1. The image in (a) above now serves as the object...