Here we apply concept of image formed by combination of lenses and lens formula as well as magnification formula for individual lenses.
9. A simple telescope can be constructed from two convex lenses. Consider a telescope that uses...
Galileo's Telescope Galileo's first telescope used a convex objective lens with a focal length f=1.7m and a concave eyepiece, as shown in the figure. (Figure 1)When this telescope is focused on an infinitely distant object, and produces an infinitely distant image, its angular magnification is +3.0. A. What is the focal length of the eyepiece? in cm b. How far apart are the two lenses?
A simple microscope consists of two lenses as shown at below. The object is just placed outside of the focal length of an objective lens with f = 5.00 mm (5.00 × 10−3 m). The focal length of the eyepiece is f=30.0mm (3.00 × 10−2 m). The microscope is being used to image a dust mite with a size of 0.30 mm. A. What is the angular size of the dust mite when observed with the naked eye at 0.30...
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...
Part A Which are the components of a typical refracting telescope? 1.convex object and eyepiece 2. concave object and convex eyepiece 3. covex object and concave eyepiece Part B Which of the following best decribes the object being viewed by the telescope? 1. object slightly outside focal length of objective 2. object slightly inside focal length of objective 3. objective essentially infinitely far away Part C The location of the object to be viewed far away results in what sort...
Which is true of a compound microscope? Question 1 options: Uses two converging lenses The optics are reversed from those of a refracting telescope The object to be viewed to be enlarged is placed just outside the focal point of the lens All of the above An optical surface is converging if . . . Question 2 options: Parallel incident rays are bent so they intersect after interacting with the surface Parallel incident rays are bent so they intersect before...
Consider 2 converging lenses of focal lengths 5 mm (objective) and 50 mm. (eyepiece) An object 0.1 mm in size is placed a distance of 5.2 mm from the objective. 1.What is the size and location of the image from the objective? What is the linear magnification of this objective? 2.Treat the image from the objective as an object for the eyepiece. If the eyepiece creates an image at infinity, how far apart are the two lenses? 3.What is the...
Consider 2 converging lenses of focal lengths 5 mm (objective) and 50 mm.(eyepiece) An object 0.1 mm in size is placed a distance of 5.2 mm from the objective. 1. What is the size and location of the image from the objective? What is the linear magnification of this objective? 2. Treat the image from the objective as an object for the eyepiece. If the eyepiece creates an image at infinity, how far apart are the two lenses? 3. What...
PLEASE SHOW YOUR WORK 7. You have 2 convex lens (fi = 20 cm and f 6 cm) and you want to build a microscope a) Which lens should be the objective? Which should be the eyepiece? o Objective has a focal length of 6 cm, so the eyepiece must have a focal length of 20 cm b) How far apart should the 2 lenses be to achieve an angular magnification of 3.125? o Use magnification for a microscope equation...
An astronomical telescope has its two lenses spaced 82.9 cm apart. If the objective lens has a focal length of 78.5 cm , what is the magnification of this telescope? Assume a relaxed eye. Follow the sign conventions.
6. A compound microscope consists of two converging lenses (the objective and the eyepiece) placed 7.0 cm apart. If the first lens (objective) has a focal length of 2.8 mm and the second lens (eyepiece) has a focal length of 3.3 cm, what would be the location of the final image of an object placed 3.0 mm from the objective lens? Describe the image