![Question no 1 A] How many electrons are necessary to produce 1.2 C of negative charge? (e 1.60 x 10-19 C) CI Roman is nearsighted and his far point is 150cm from his eyes. What should be the focal length of his eyeglass lens so that he can focus on a very distant object? (i) Draw a labelled ray diagram with the eyeglass lens. (i) Find the power of his lens. (Power- 1/(focal length (in meter) D] A compound microscope has an objective of focal length 0.8 cm and an eyepiece of focal length 1.25 cm. A red blood cell is located 0.84 cm in front of the objective lens (i.e., away from eyepiece), the image distance for the objective lens is 16.8 cm, the object distance for the eyepiece is 1.2 cm and the final image (i.e., image formed by eyepiece) of the cell is formed 30 cm from the eyepiece towards the objective lens. The viewers near point is 0.25 m. i) Draw a labelled ray diagram (neat and clean also) and (i) Find angular magnification of the microscope](http://img.homeworklib.com/questions/188fc9b0-ad36-11eb-98cf-612bb05d53f1.png?x-oss-process=image/resize,w_560)
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Question no 1 A] How many electrons are necessary to produce 1.2 C of negative charge?...
Consider a microscope that consists of an objective lens and an eyepiece separated by 19.7 cm....
Consider a microscope that consists of an objective lens and an eyepiece separated by 19.7 cm. The focal length of the objective lens is 0.20 cm, and the focal length of the eyepiece lens is 2.5 cm. Assume the final image is produced at a distance of 25 cm. (a) Find the magnification of the microscope. You may assume that the focal lengths are far smaller than the size of the microscope. (b) Draw a ray diagram for this microscope.
A microscope has an objective lens with a focal length of 19.5 mm and an eyepiece with a focal length of 6.2 mm. With the length of the barrel set an 33.0 cm, the diameter of a red blood cell’s image...
A microscope has an objective lens with a focal length of 19.5 mm and an eyepiece with a focal length of 6.2 mm. With the length of the barrel set an 33.0 cm, the diameter of a red blood cell’s image subtends an angle of 1.2 milli-radians with the eye. The final image distance is 29.0 cm from the eyepiece. (a) What is the length of the image of the of the cell produced by the eyepiece? (b) Using the...
an object is 1.2 cm form the objective lens of a simple compound microscope that is...
an object is 1.2 cm form the objective lens of a simple compound microscope that is adjusted for a relaxed normal eye. the objective and eyepiece are 18 cm apart and the eyepiece has a focal length of 4.8 cm. what is the focal length of the objective lens?
please I need answers to all questions because am writing text on Friday. 7. Suppose an...
please I need answers to all questions because am
writing text on Friday.
7. Suppose an object such as a book page is held 7.50 cm from a concave lens of focal length -1C em. Such a lens could be used in eyeglasses to correct pronounced nearsightedness. (a) Using the thin le equations to calculate the location of the image. (b) What magnification is produced? (c) Use ray tracing get an approximate location for the image. 8. The left face...
C. Producing virtual images The eyepiece of a microscope produces a virtual image to be viewed...
C. Producing virtual images The eyepiece of a microscope produces a virtual image to be viewed by the eye, i.e. the rays of light that form the final image diverge from the lens and appear to come from a location behind the eyepiece lens (the image appears to be behind the lens). 1. Make a ray diagram for a converging lens (focal length f) with the object at a distance s < f.
90 cm, an eyepiece lens with a fosal length of 6.20 m and a barrel A custom-made compound microcp...
90 cm, an eyepiece lens with a fosal length of 6.20 m and a barrel A custom-made compound microcpe (see the figure below) wih an objective lens with a focal length of 3 ength of 29.5 cm is used to view a D.100 cm specimen mounted on a microscope slide. Since the miaroscope is custom-made, varies slightly from a standard production rn croscope in that the object distance for the ubjectve ฯ Bo much larger than the otel length of...
A. How far from the objective lens is the first image formed? B. What is the...
A. How far from the objective lens is the
first image formed?
B. What is the overall magnification of this microscope?
A compound microscope has an objective lens of focal length 9.70 mm with an eyepiece of focal length 15.5 mm, and it produces its final image at infinity. The object to be viewed is placed 2.0 mm beyond the focal point of the objective lens
A Galilean telescope is made with a 40 cm focal length objective lens and a -10 cm focal length e...
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...
2) A schematic diagram of a refractive microscope is shown in Figure 1. The focal length...
2) A schematic diagram of a refractive microscope is shown in Figure 1. The focal length of the objective lens is 25 mm, that of the eyepiece lens is 73 mm, and the two lenses are 200 mm apart. The object is 30 mm away from the objective lens. a. What is the image distance relative to the eyepiece lens? Answer: b. What is the overall magnification of this image? Answer:-16 159 mm eyepiece lens object lens object Figure
Experiment 22: The Compound Microscope f2 Object 2 1 (Objective Lens)d L, (Eyepiece) d#150mm The Compound Microsco...
Experiment 22: The Compound Microscope f2 Object 2 1 (Objective Lens)d L, (Eyepiece) d#150mm The Compound Microscope A compound microscope uses two lenses to provide greater magnification of near objects than is possible using a single lens as a magnifier. The setup is shown above. The objective lens, L1, functions as a projector. The object is placed just beyond the focal point of L1 so a real, magnified, inverted image is formed. The eyepiece, L2, functions as a magnifier. It...
Consider a microscope that consists of an objective lens and an eyepiece separated by 19.7 cm. The focal length of the objective lens is 0.20 cm, and the focal length of the eyepiece lens is 2.5 cm. Assume the final image is produced at a distance of 25 cm. (a) Find the magnification of the microscope. You may assume that the focal lengths are far smaller than the size of the microscope. (b) Draw a ray diagram for this microscope.
please I need answers to all questions because am
writing text on Friday.
7. Suppose an object such as a book page is held 7.50 cm from a concave lens of focal length -1C em. Such a lens could be used in eyeglasses to correct pronounced nearsightedness. (a) Using the thin le equations to calculate the location of the image. (b) What magnification is produced? (c) Use ray tracing get an approximate location for the image. 8. The left face...
90 cm, an eyepiece lens with a fosal length of 6.20 m and a barrel A custom-made compound microcpe (see the figure below) wih an objective lens with a focal length of 3 ength of 29.5 cm is used to view a D.100 cm specimen mounted on a microscope slide. Since the miaroscope is custom-made, varies slightly from a standard production rn croscope in that the object distance for the ubjectve ฯ Bo much larger than the otel length of...
A. How far from the objective lens is the
first image formed?
B. What is the overall magnification of this microscope?
A compound microscope has an objective lens of focal length 9.70 mm with an eyepiece of focal length 15.5 mm, and it produces its final image at infinity. The object to be viewed is placed 2.0 mm beyond the focal point of the objective lens
2) A schematic diagram of a refractive microscope is shown in Figure 1. The focal length of the objective lens is 25 mm, that of the eyepiece lens is 73 mm, and the two lenses are 200 mm apart. The object is 30 mm away from the objective lens. a. What is the image distance relative to the eyepiece lens? Answer: b. What is the overall magnification of this image? Answer:-16 159 mm eyepiece lens object lens object Figure
Experiment 22: The Compound Microscope f2 Object 2 1 (Objective Lens)d L, (Eyepiece) d#150mm The Compound Microscope A compound microscope uses two lenses to provide greater magnification of near objects than is possible using a single lens as a magnifier. The setup is shown above. The objective lens, L1, functions as a projector. The object is placed just beyond the focal point of L1 so a real, magnified, inverted image is formed. The eyepiece, L2, functions as a magnifier. It...
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