2. Explain why light rays converge when passing through a double convex lens by describing the...
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 converging lens?
5. What type of lens is used in a magnifying glass? Explain how to use the magnifying glass properly to see the largest possible image. Where should your eye be located and where should the object be located?
Homework Answers
2) Lenses are made of transparent material such as glass or
plastic with an index of refraction greater than that of air.
Convex lenses refract parallel light rays so that they meet.
Parallel light rays passing through it bend inward and meet
(converge) at a spot just beyond the lens known as the focal point.
The ray passing along the optical axis pass undeviated.
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2. Explain why light rays converge when passing through a double
convex lens by describing the...
1. The most common lens is a spherical lens. Describe the shape of a spherical lens....
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...
3. What happens to the image if half a converging lens is covered? Explain why this...
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 converging lens? 5. What type of lens is used in a magnifying glass? Explain how to use the magnifying glass properly to see the largest possible image. Where should your eye be located and where should the object be located?
4. What are the conditions necessary to form a virtual image using a converging lens? 5....
4. What are the conditions necessary to form a virtual image using a converging lens? 5. What type of lens is used in a magnifying glass? Explain how to use the magnifying glass properly to see the largest possible image. Where should your eye be located and where should the object be located?
1. The distance from the center of a lens to the location where parallel rays converge...
1. The distance from the center of a lens to the location where parallel rays converge or appear to converge is called the length. convergence O meeting O focal O None of the above 2. When incoming rays are the focal point and the image point are the same. O parallel O from a nearby object O passing through the near side focal point O None of the above 3. A(n) image will not appear on a screen placed at...
Draw a diagram of light Rays going from a source and through and converging (convex) lens....
Draw a diagram of light Rays going from a source and through and converging (convex) lens. Label the focal point and briefly describe what happens to light as IT goes through the lens?.
A convex lens is a transparent instrument that uses refraction to bend and focus light from...
A convex lens is a transparent instrument that uses refraction to bend and focus light from an object, forming a sharp image. We'll first investigate how the lens produces an image from a point source of light (a lamp). Select Screen at upper right, which makes the object a lamp and gives a black screen that can be dragged around. Select Many rays at upper left to see how the lens bends some of the rays of light from the...
Cv A thin convex lens perpendicular to the rays. The imaginary line perpendicular to the lens...
Cv A thin convex lens perpendicular to the rays. The imaginary line perpendicular to the lens and running exactly through the center is referred to as the optical axis or principal axis. Note that it is necessary to place the lens on the front half of the table to observe the intended phenomenon. Dim the class lights and observe the refracted rays 21 What is the focal length of the lens? Answer: 13 cm Use a thick block half lens....
HOLT PHYSICS MODULE 15 Refraction Fill each blank below with the word or phrase that completes...
HOLT PHYSICS MODULE 15 Refraction Fill each blank below with the word or phrase that completes the statement. 1. A focuses to a point light rays passing through it. The focusing effect is the result of Light waves are refracted when they pass from one medium to another because their 2. changes. 3-The normal line is an imaginary line- of to the two mediums. Light waves are bent away from the normal or toward it depending on whether the speed...
1. Why is it not possible for total internal reflection to occur when a light beam...
1. Why is it not possible for total internal reflection to occur when a light beam is passing from a medium of low optical density (air) into a medium of higher optical density ( glass or water). Explain fully. 2. When light is incident on an interface between two materials, the angle of the refracted ray depends on the wavelength, but the angle of the reflected ray does not. Why should this be true? Explain fully. 3. Sunlight and star...
6. (a) The lens in a magnifying glass produces a magnification of +3.0 when held 5.0...
6. (a) The lens in a magnifying glass produces a magnification of +3.0 when held 5.0 cm from an object - in this case a rare coin. (i) (3 pts) What is the focal length of the lens? (ii) (3 pts) How far is the image of the coin from the lens? Is it real or virtual? (b) (4 pts) Identify the optical elements in the dashed boxes in the two diagrams below (i.e. diverging lens, converging lens, convex mirror,...
1. The distance from the center of a lens to the location where parallel rays converge or appear to converge is called the length. convergence O meeting O focal O None of the above 2. When incoming rays are the focal point and the image point are the same. O parallel O from a nearby object O passing through the near side focal point O None of the above 3. A(n) image will not appear on a screen placed at...
Cv A thin convex lens perpendicular to the rays. The imaginary line perpendicular to the lens and running exactly through the center is referred to as the optical axis or principal axis. Note that it is necessary to place the lens on the front half of the table to observe the intended phenomenon. Dim the class lights and observe the refracted rays 21 What is the focal length of the lens? Answer: 13 cm Use a thick block half lens....
HOLT PHYSICS MODULE 15 Refraction Fill each blank below with the word or phrase that completes the statement. 1. A focuses to a point light rays passing through it. The focusing effect is the result of Light waves are refracted when they pass from one medium to another because their 2. changes. 3-The normal line is an imaginary line- of to the two mediums. Light waves are bent away from the normal or toward it depending on whether the speed...
6. (a) The lens in a magnifying glass produces a magnification of +3.0 when held 5.0 cm from an object - in this case a rare coin. (i) (3 pts) What is the focal length of the lens? (ii) (3 pts) How far is the image of the coin from the lens? Is it real or virtual? (b) (4 pts) Identify the optical elements in the dashed boxes in the two diagrams below (i.e. diverging lens, converging lens, convex mirror,...
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