Download the App!

Get 24/7 study help with the Numerade app for iOS and Android! Enter your email for an invite.

$\bullet$ Figure 24.51 shows a small plant near a thin lens. The ray shown is one of the principal rays for the lens. Each square is 2.0 $\mathrm{cm}$ along the horizontal direction, but the vertical direction is not to the same scale. Use information from the dia- gram to answer the following questions: (a) Using only the ray shown, decide what type of lens (converging or diverging) this is. (b) What is the focallength of the lens? (c) Locate the image by drawing the other two principal rays. (d) Calculate where the image should be, and compare this result with the graphical solution in part (c).

Get the answer to your homework problem.

Try Numerade free for 7 days

Like

Report

a) diverging lensb) -6 cmc) Graph unavailabled) 3 cm to the left

Physics 102 Electricity and Magnetism

Physics 103

Chapter 24

Geometric Optics

Electromagnetic Waves

Reflection and Refraction of Light

Cornell University

Rutgers, The State University of New Jersey

Hope College

Lectures

02:30

In optics, ray optics is a geometric optics method that uses ray tracing to model the propagation of light through an optical system. As in all geometric optics methods, the ray optics model assumes that light travels in straight lines and that the index of refraction of the optical material remains constant throughout the system.

10:00

In optics, reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves. The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected. Reflection may also be referred to as "mirror image" or "specular reflection". Refraction is the change in direction of a wave due to a change in its speed. The refractive index of a material is a measure of its ability to change the direction of a wave. A material with a higher refractive index will change the direction of a wave to a greater degree than a material with a lower refractive index. When a wave crosses the boundary between two materials with different refractive indices, part of the wave is refracted; that is, it changes direction. The ratio of the speeds of propagation of the two waves determines the angle of refraction, which is the angle between the direction of the incident and the refractive rays.

07:35

Figure 24.49 shows a small…

04:12

Figure 24.52 shows a small…

03:26

$\bullet$ Figure 24.53 sho…

04:08

. Figure 24.50 shows a sma…

05:12

Figure 34.56 shows a small…

07:33

Figure 24.48 shows a small…

06:19

$\textbf{Figure P34.72}$ s…

03:59

Figure $\mathrm{P} 34.78$ …

09:45

Figure 24.50 shows a small…

05:10

Two converging lenses with…

05:30

08:22

A converging lens has a fo…

Okay, so we have a graph showing one rail, the Ford plant Teo through a lens and well, we see in part is that the rare is bent away from the leads away from the from the access, I should say by the lens. And so Ah, this is this is how we know that this is not, ah, conversion lens. Because when your way will bend toward the access by the lens, that's when you have a conversion. Once in this case, we have ah, diversion lands. Okay, Uh, and for part B, we were just looking. We look at the graph on DH. Each horizontal square is two centimeters on DH. So we see that the ray comes of two month. The raid meets the optic access at three square, so two centimeters times three equals six centimetres. So that would be the magnitude of the focal length. That s f, of course, is so it is a diversion lens, so it will be negative. Meaning googling the six negative six centimeters for part. See, we look at the way diagram, but I drew here. So you have an image that is O r. You have an object that is at the focal point, and you have three different rays traveling from the object to the, uh to the diversion lens you'd shown by different color. So first year of this blue ray, our justice of Ray that's traveling parallel to the access before reading the lens and then being refracted out and then the reflection. Then they're a friend of reflected portion going back to for to form one of the about to converge at the image point. Then you have this red ray that's traveling through the center of the lands and that's converging there. And then finally you have the green ray, which upon refraction with the lens, is traveling of along the axis on the reflection of that part moods. The It's the image point, which is over there on DH then, and so you could be should, of course, dried out in the moor to scale where probably on on graphing paper would be a better idea. But so a CZ you can see from this figure images about as roughly ballpark half the object distance, and so we verify that in part, due, um, one over f there's one over s plus the best prime. And so when a grass prime is one over minus one over s when over f is negative. When I was six that minus one over six. All right, but it gives you negative one of three. Therefore, as prime is negative three centimeters on DH. So as primary negative means that the images are the same side of the lens has the A Z object, and we guessed it was half the objects just of prejudice. So there you go.

View More Answers From This Book

Find Another Textbook

Numerade Educator

01:15

what is ICAP and J cap in physics in simple language

03:09

(a) how does we see colours ? (b) what is colour blindness? what type of r…

01:33

When two objects are rubbed with each other, approximately a charge of 50 nc…

01:21

A racing car has uniform acceleration of 4 metre per second square then the …

02:52

A train moves at a constant speed of 120 km/ h for one kilometre and at 40 k…

03:07

the escape speed from a planet x is 165 m/s. calculate the density of the pl…

01:05

The imino acid found in protein structure(a) Arginine (b) Proline (c) Histid…

00:51

Please give me some more examples of five pairs of congruent solid objects f…

02:40

7. Identify the nature of mirror and mention two characteristics of imagefor…

01:13

With x axis westward and y axis southward the coordinates of two places are …