A compound microscope is made from an objective lens of focal length fo = 8 mm, andan eyepiece of fe = 12 mm. The objective lens is moved close to the object so that anintermediate image is formed 20 cm above the objective lens; then the eyepiece is set atits own focal length above the intermediate image, forming a virtual image at infinity forthe user's eye. If the object is 0.15 mm in diameter, calculate the following, taking care todefine symbols used:i) The required distance of the objective lens above the object.ii) The diameter of the intermediate image.iii) The angular size of the image to the user's eye.iv) The system angular magnification, defined as the angular size in (iii) divided by theangle subtended by the object to the naked eye from a distance of 25 cm.

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Answered: A compound microscope is made from an…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Similar questions

Suppose a lens is placed in a device that determines its power as 2.64 diopters. (a) Find the focal length of the lens. f = cm I'M STUCK! (b) Find the minimum distance at which a patient will be able to focus on an object if the patient's near point is 49.3 cm. Neglect the eye-lens distance. cm d min
A certain slide projector has a 135 mm focal length lens. (a) How far away is the screen (in m), if a slide is placed 139 mm from the lens and produces a sharp image? m (b) If the slide is 18.0 by 45.0 mm, what are the dimensions of the image? (Enter your answers from smallest to largest in cm.) cm by cm
A simple compound microscope with an overall magnification of -850 has an objective that magnifies by -250. Part (a) What is the magnification of the eyepiece? Part (b) If there is another objective that can be used, having magnification of -400, what other total magnification is possible?
The power of the lenses of a certain physician’s eyes is 59 D. Assume the distance between a retina and a lens in the human eye is 2.00 cm. When she carefully examines a patient, how far, in meters, must the patient be from her?
A slide projector has a converging lens whose focal length is 128.00 mm. (a) How far (in meters) from the lens must the screen be located if a slide is placed 129.44 mm from the lens? If the slide measures 24.0 mm (width) x 36.0 mm (height), what are the magnitudes of the (b) width (in mm) and (c) height (in mm) of its image? (a) Number i Units (b) Number i Units (c) Number i Units
An individual is nearsighted; his near point is 11.0 cm and his far point is 51.0 cm. (a) What lens power is needed to correct his nearsightedness? 1.96 X The response you submitted has the wrong sign. diopters (b) When the lenses are in use, what is this person's near point? 11 X Your response differs from the correct answer by more than 10%. Double check your calculations. cm
In a two-lens system, the focl length of the lens is f1 = 4.00 cm, and that of then lens 2 is f2 = 8.00 cm. The distance between the lenses is 16 cm. If an object O is 2.00 cm high and is placed 6.00 cm in front of the lens 1, where is the final image through the two-lens system?
EXPERIMENT - FOCAL LENGTH OF THE GIVEN LENS Objective: (a) To investigate the properties of the given lens. (b) To investigate the images formed by the lens for various object positions. (c) To measure the focal length of the lens. Formulae: 1 1 + u 1 1 P = f V Apparatus used in this Experiment: Experimental data Physical Quantity Its Value in cm Image distance in cm 24.5 Object distance in cm 17 Answer the following: Question - 1 Among the 2 distances mentioned in the table, which distance is fixed and which is measured ? 1. Fixed distance - 2. Measured distance -
Needs Complete solution with 100 % accuracy.
A magnifying glass enlarges the image of a nickel by M=1.9 when the lens is held p=5.3 cm from the object. (a) Find the focal length fof the lens. 11.4 cm (b) How far from the nickel do you need to hold the same lens to obtain a magnification of M-2.6? cm

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