Physics, 20.08.2019 21:20 haydonmetzger

An object of size 2 cm is placed 8 cm to the left of a converging lens with the focal length of 6cm. a diverging lens of focal length 12 cm is placed a distance 18 cm to the right of the converging lens. describe the final image (location, size, orientation, and type)

Answers: 3

Show answers

Answers

Answer from: arthurdolz

Final image is located at 1.71 cm to the left of diverging lens. Final image will be inverted and virtual.

Explanation:

In this question,

we have to find location of final image,v=?

In this question we have given,

object distance from converging lens,u=-8cm

focal length of converging lens, $f_{c}$ =6cm

distance between converging and diverging lens=18cm

focal length of diverging(concave) lens, $f_{d}$ =-12cm

To find the location of final image, we will first find the location of image formed by converging(convex) lens

we know that u, v and $f_{c}$ are related by following formula

$\frac{1}{f_{c}} =\frac{1}{v}- \frac{1}{u}.$ ............(1)

put values of $f_{c}$ and u in equation (1)

we got,

$\frac{1}{6} =\frac{1}{v}- \frac{1}{-8}$

$\frac{1}{6}-\frac{1}{8} =\frac{1}{v}$

$\frac{8-6}{6\times 8} =\frac{1}{v}$

$v=\frac{6\times 8}{2}\\ v=24cm$

The image is located 24 cm to the right of the converging lens. This image is real and inverted.

Now, image formed by converging lens will act as object for the diverging lens which is now located at (18-20=-2)cm at the left hand side of diverging lens

it means,

u=-2cm

we know that u, v and $f_{d}$ are related by following formula

$\frac{1}{f_{d}} =\frac{1}{v}- \frac{1}{u}$ .............(2)

put values of $f_{d}$ and u in equation (2)

$\frac{1}{-12} =\frac{1}{v}- \frac{1}{-2}$

$\frac{1}{-12}-\frac{1}{2} =\frac{1}{v}$

$\frac{-2-12}{2\times 12} =\frac{1}{v}$

$v=\frac{2\times 12}{-14}\\ v=-1.71 cm$

It means final image is located at 1.71 cm to the left of diverging lens. Final image will be inverted and virtual.

Answer from: Quest

relativism, roughly put, is the view that truth and falsity, right and wrong, standards of reasoning, and procedures of justification are products of differing conventions and frameworks of assessment and that their authority is confined to the context giving rise to them. more precisely, “relativism” covers views which maintain that—at a high level of abstraction—at least some class of things have the properties they have (e.g., beautiful, morally good, epistemically justified) not simpliciter, but only relative to a given framework of assessment (e.g., local cultural norms, individual standards), and correspondingly, that the truth of claims attributing these properties holds only once the relevant framework of assessment is specified or supplied. relativists characteristically insist, furthermore, that if something is only relatively so, then there can be no framework-independent vantage point from which the matter of whether the thing in question is so can be established.

relativism has been, in its various guises, both one of the most popular and most reviled philosophical doctrines of our time. defenders see it as a harbinger of tolerance and the only ethical and epistemic stance worthy of the open-minded and tolerant. detractors dismiss it for its alleged incoherence and uncritical intellectual permissiveness. debates about relativism permeate the whole spectrum of philosophical sub-disciplines. from ethics to epistemology, science to religion, political theory to ontology, theories of meaning and even logic, philosophy has felt the need to respond to this heady and seemingly subversive idea. discussions of relativism often also invoke considerations relevant to the very nature and methodology of philosophy and to the division between the so-called “analytic and continental” camps in philosophy. and yet, despite a long history of debate going back to plato and an increasingly large body of writing, it is still difficult to come to an agreed definition of what, at its core, relativism is, and what philosophical import it has. this entry attempts to provide a broad account of the many ways in which “relativism” has been defined, explained, defended and criticized.

explanation:

Answer from: Quest

Iwould think it is temperature, silica, oxides (gases)

Another question on Physics

Physics, 22.06.2019 05:10

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.

Answers: 3

Answer

Physics, 22.06.2019 06:20

Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator. so it is no surprise that such clothing has largely replaced thickand heavy old-fashioned coats. (a) consider a jacket made of five layers of 0.1-mm-thick synthetic fabric (k = 0.13 w/m·°c) with 1.5-mm-thick air space (k = 0.026 w/m·°c) between the layers. assuming the inner surface temperature of the jacket to be 28°c and the surface area to be 1.25 m2, determine the rate of heat loss through the jacket when the temperature of the outdoors is 0°c and the heat transfer coefficient at the outer surface is 25 w/m2·°c. (b) what would your response be if the jacket is made of a single layer of 0.5-mm-thick synthetic fabric? what should be the thickness of a wool fabric (k = 0.035 w/m·°c) if the person is to achieve the same level of thermal comfort wearing a thick wool coat instead of a five-layer ski jacket?

Answers: 1

Answer

Physics, 22.06.2019 10:00

How many times did thomas edison mess up the light bulb

Answers: 1

Answer

Physics, 22.06.2019 15:00

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants

Answers: 2

Answer

You know the right answer?

An object of size 2 cm is placed 8 cm to the left of a converging lens with the focal length of 6cm....

Questions