Assume that when you relax the muscles that control the shape of your lens eye, have trouble seeing distant objects. Should I wear glasses that have lenses convergent or divergent? Which ones should I use if I had trouble seeing nearby objects, when your muscles make the lens of your eye converge the most possible?
Assume that when you relax the muscles that control the shape of your lens eye, have...
There are three types of conditions by which the eye can not focus properly; myopia, hyperopia and astigmatism. Here we will explore only myopia and hyperopia. In myopia (for various reasons) the image within the eye focuses on a point in the vitreous humor and not in the retina. This causes the eye to be unable to correctly focus on distant objects. In hyperopia (for various reasons) the image focuses on a point farther away than the retina outside the...
There are three types of conditions by which the eye can not focus properly; myopia, hyperopia and astigmatism. Here we will explore only myopia and hyperopia. In myopia (for various reasons) the image within the eye focuses on a point in the vitreous humor and not in the retina. This causes the eye to be unable to correctly focus on distant objects. In hyperopia (for various reasons) the image focuses on a point farther away than the retina outside the...
1. The most common lens is a spherical lens. Describe the shape of a spherical lens. 2. Explain why light rays converge when passing through a double convex lens by describing the paths of three light rays; one along the optic axis and the other two parallel to the optic axis. 3. What happens to the image if half a converging lens is covered? Explain why this occurs. 4. What are the conditions necessary to form a virtual image using...
A woman can see clearly with her right eye only when objects are between 43 cm and 135 cm away. Prescription bifocals should have what powers so that she can see distant objects clearly (upper part) and be able to read a book 25 cm away (lower part) with her right eye? Assume that the glasses will be 2.0 cm from the eye. Express your answers using two significant figures separated by a comma.
Each of your eyes has a lens in it. This lens can change its shape and hence its focal length. By changing the focal length you are able to focus on an object based on how far away it is from you. For this problem you will determine the maximum focal length of your eye. A. To determine the maximum focal length of your eye you need to establish how far you can see under ideal conditions (no fog, an...
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...
Joe is hiking through the woods when he decides to stop and take in
the view. He is particularly interested in three objects: a
squirrel sitting on a rock next to him, a tree a few meters away,
and a distant mountain. As Joe is taking in the view, he thinks
back to what he learned in his physics class about how the human
eye works.
Light enters the eye at the curved front surface of the cornea,
passes through...
You have been consulted by the mobile phone company Hookup about a new augmented reality product called “Brows”. They want to develop an alternative to Google Glasses, which, you recall, is a proposed new product which plans to superimpose a whole range of wireless Google services over the user’s ordinary vision of the world. These appear in little circles and ovals, and let you phone people, take photographs, navigate across cities and inside buildings, find shops and update your social...
1. Name at least 3 ways you can control the amount of light that reaches the ocular lens. 2. Define resolution. What is the limit of resolution for the light microscope? 3. What effect does the wavelength of light used have on resolution? 4. If you view a bacterial smear under the oil immersion lens, but forget to add oil, will the image still be just about as clear as if you had added the oil. 5. Define parfocal. 6....
1-7 please
1-When carrying a microscope to and from your bench your hands should be placed a) b) c) d) one hand on the arm and one under the base both hands on the arm only one hand should be used under the base both hands under the stage 2-True or False Primary containment is protecting the immediate surroundings and personnel in a laboratory against infectious agents. 3-The lens is located at the top of the instrument and consists of...