an object is placed at a distance of 20cm from convex lens of focal length 15cm find the image distance​

Answers

Answer 1

Answer:

Image distance = 60 cm

Explanation:

Object distance from a convex lens = 20 cm

Focal length of convex lens = 15 cm

Use the following relation between the object distance, focal length and image distance.

[tex]\frac{1}{object\,\,distance}+\frac{1}{image\,\,distance} =\frac{1}{focal\,\,length}[/tex]

[tex]\frac{1}{20}+\frac{1}{image\,\,distance}=\frac{1}{15}\\\\ \frac{1}{image\,\,distance}= \frac{1}{15}-\frac{1}{20}\\\\ \frac{1}{image\,\,distance}= \frac{4-3}{60} \\\\ \frac{1}{image\,\,distance}=\frac{1}{60}[/tex]

Therefore,

Image distance = 60 cm


Related Questions

How do economic growth, full employment, price stability, and inflation indicate a nation’s economic health?

Answers

Answer:

Kindly check explanation

Explanation:

The state of a nation's economy is usually evaluatwd based on certain metrics which relating to the well being of its citizens, behavior of its market, finances and resources. Those metrics may include ; level or rate of inflation, employment level, level of economic growth or decline and many others. A healthy economy is one In which economic factors are in a positive state and hence its positive effects is left by the citizens in ways including the increased level of production which economically fights inflation and also helps achieve stability in terms of prices of products and commodities. Reduction in level of unemployment and increased full time jobs. Generally, a healthy nation should experience a robust economic growth and improvement.

Which of the following is a good inventory storage practice?
O A.
first in, first out
OB. first in, last out
OC. last in, first out
OD.
last in, last out

Answers

Answer:

B.

Explanation:

B. First in First out is good I guess

Answer:

option A: first in, first out

Explanation:

i just answered it myself, and it was the correct answer.

Plz help!!!!!!!!!!!!! giving brainliest for correct answer!!! Which type of degree is earned after a master’s degree?


doctorate

secondary

bachelor’s

associate’s

Answers

Answer:

Doctorate. this helps :)

Explanation:

Rachel needs a car to get to work and school. She's decided on a used car with a cost of $9,000. According to her budget, she can afford to pay up to $275 per month in car payments. Which loan offer is best for Rachel? Length of Loan APR Late Payment Fee Monthly Payment Total Cost of Loan Offer 1 24 months 4.5% $35 $393 $9,428 Offer 2 36 months 5% $20 $270 $9,711 Offer 3 48 months 5.5% $45 $209 $10,047 Offer 4 60 months 6.5% $25 $176 $10,566 Offer 1, because it has the lowest APR and lowest total cost of the loan Offer 2, because it has the lowest total loan cost of the offers with a monthly payment in her budget Offer 3, because a low monthly payment and the lowest late payment fee Offer 4, because it has the lowest monthly payment which frees up her budget for more fun with friends

Answers

Answer:

the best loan offer for Rachel is Offer 2, because it has the lowest total loan cost of the offers with a monthly payment in her budget.

Explanation:

Note: The data in the question are merged together. They are therefore sorted before answering the question as follows:

               

                Length of       APR      Late Payment     Monthly         Total Cost

                    Loan                                 Fee               Payment          of Loan

Offer 1       24 months     4.5%             $35                 $393              $9,428

Offer 2      36 months     5%                $20                 $270              $9,711

Offer 3      48 months     5.5%             $45                 $209             $10,047

Offer 4      60 months     6.5%            $25                  $176              $10,566

The explanation of the answer is now given as follows:

In finance, the best loan offer between or more different loan offers is a loan offer that meets the following 2 conditions:

1. The loan must has the lowest total cost of loan.

2. The periodic payment must be within the budget of the loan beneficiary.

From data in the question, only Offer 2 meets the 2 conditions above.

Therefore, the best loan offer for Rachel is Offer 2, because it has the lowest total loan cost of the offers with a monthly payment in her budget.

how to calculate cost of sales and gross profit​

Answers

Answer:Answer:Gross profit is the profit a company makes after deducting the costs associated with making and selling its products, or the costs associated with providing its services. Gross profit will appear on a company's income statement and can be calculated by subtracting the cost of goods sold (COGS) from revenue (sales)

What actions can people take to reduce hunger in local and global settings? Explain in details pls

Answers

Answer:

Kindly check explanation

Explanation:

Hunger often stems from poverty, Famine, inflation, war and so on. However, factors which often has a direct impact on food and coukd lead to hunger include poverty and Famine. To reduce or forestall this problem on a local and global scale, necessary steps which should be taken are those which tends to address the issue of food security. Which includes the empowerment of farmers and good funding and monitoring of the agricultural sector. Through this food cultivation could be done on a multi dimensional scale by providing support in terms of machinery, low interest loans in otter to enable farmers and other related stakeholders get access to the needs d capital for the development of their agricultural business. Also, good road network for easy transportation of farm produce. Alternative methods of watering such as irrigation farming should be upgraded as this could prove vital during periods of Rainfall shortage. The distribition of foods including adequate regularozation of prices is also key in other to prevent artificial inflation or scarcity in a bid to accrue higher profit.

What dynamics were used ​

Answers

Answer:

J.S. Bach used some dynamic terms, including forte, piano, più piano, and pianissimo (although written out as full words), and in some cases it may be that ppp was considered to mean pianissimo in this period.

If anyone can please help asap

Answers

Answer:

1. Negative externality: Jeff declined to buy his favorite chocolate bar because the price has increased.

2. Dollar vote: increased neighborhood crime is caused by a pawn shop.

3. Public goods: a freeway is available for all to use.

4. Positive externality: public education in the United States results in benefits for others around the world.

Explanation:

1. Negative externality: Jeff declined to buy his favorite chocolate bar because the price has increased. A negative externality arises when the production or consumption of a finished product or service has negative impact (cost) on a third party.

2. Dollar vote: increased neighborhood crime is caused by a pawn shop. A dollar vote describes how the consumer's purchasing power influences the type (quantity) of goods to be produced and supplied to the market.

3. Public goods: a freeway is available for all to use. It refers to any goods that is accessible and available to the general public at all times without an additional fee, charges or cost.

4. Positive externality: public education in the United States results in benefits for others around the world. A positive externality arises when the production or consumption of a finished product or service has a significant impact or benefits to a third party that isn't directly involved in the transaction.

Write H if the resource is a human resource, and NH if it is a nonhuman resource. 1.Machines
2.Tools
3.Workers
4.Land
5.Water
6.Capital
7.Labor force
8.Time
9.Entrepreneur
10.Process​

Answers

1.H

2.H

3.NH

4.NH

5.H

6.NH

7.H

8.NH

9.H

10.H

can I buy 100 stocks?​

Answers

Answer:

Maybe.

Explanation:

There are a lot factors that go into being able to purchase stocks - but the primary one would be how much money do you have to invest? I'm not sure if the question is asking if you can purchase shares of stock in 100 different companies or if you can purchase 100 shares of one company's stock. Generally speaking, in addition to the cost of the stock, you also have to pay fees in order to purchase (and sell) the stock...but these days it's somewhat possible to avoid the purchase fees with a no fee stock broker...for instance Robinhood. If you want to purchase 100 shares of stock, you need to have the money to afford to purchase it...and you also need to be old enough to open an account with a brokerage service, and you need to not work in certain industries.

Lindsay is a personal trainer who works with athletes to get them ready for their events. She helps them learn how to strengthen their muscles and keep their bodies in prime condition so that they will perform at their best. The pathway in the Education and Training cluster that Lindsay’s career falls into is _____.

Answers

Answer: Fitness trainer

Explanation:

A fitness trainer is an individual who is responsible for the sole purpose of training individuals on how they can keep their body in fit condition, either for competition reasons, for their health sake or a personal decision by them. Most fitness trainer are paid and they are professionals who have undergone training either by education or have been taught by someone to carry out such practise

Answer:

C. Professionals Support Services

Explanation:

Which technologies have made global communication instant and more effective? Choose three answers.

social media
wireless devices
smart phones
automobiles
printed newspapers

Answers

The technologies that made global communication instant and more effective were social media, wireless devices, and smart phones.

The speed of communication made possible by technological developments has increased the social and economic interaction between countries, making the development of globalization possible.

Through instant communication through means that use the internet, it is possible for people to communicate from anywhere in the world quickly and cheaply.

Therefore, the effects of new communication technologies made possible business in other countries and the formation of multicultural environments.

Learn more here:

https://brainly.com/question/16499151

Answer: a b c

Explanation:

just took the unit

why is market development necessary ?

Answers

A marketing development strategy is important because it helps a business grow and reach new customers in a planned, structured way. Expanding your audience creates the potential for more leads, more sales, and more revenue, but in-depth research is essential to make sure there's value in targeting new customers.

For tonight’s concert Harold decided to charge general admission, where all of the were the same price. He set the price at $10 and 13,000 fans showed up. What was the nights revenue

Answers

Answer: $130,000

Explanation:

what is the difference between the preservation and installment​

Answers

Answer:

Credit sales are typically of shorter duration and installment sales spread payments out over longer periods of time

Explanation:

please mark my answer as brainlist

Answer:

Explanation: An installment agreement requires the buyer of real estate to pay the seller the purchase price in installments over time; the buyer takes immediate possession of the property but the seller retains legal title as security until the buyer pays in full. An installment agreement can be a low-cost, flexible alternative to a traditional mortgage loan.

f
Suppose human life without technology. Write a paragraph​

Answers

Answer:

Technology does not help Americans to become more intellectual it only ditures individuals from important aspects of life. By not using technology individuals are left to reflect and evolve mentally. As Americans use technology more their concern for others become less prevalent. The use of technology to make change or impact in the world will never be as effective as facing it head on. Technology can only do so such it can not bring families closer to each other or God. Therefore, Americans  need for technology does nothing but bring them farther away from their family, distract them from important aspects in the real world, and does not help them to evolve mentally at any extent. Many argue that life without technology is a happier and more advanced life all together that makes individuals reflect. Thoreau, well known transcendentalist, gives Americans needed advice by asserting “awake, not by mechanical aids(1)”, putting down technology as a whole. Americans can see technology as a corrupt power that controls and keeps them surrounded in fiction. As Thoreau goes on he gives Americans the idea that technology can not make a substantial like humans can. Near the end of the passage Thoreau gives context on mental advancement by saying “My head is hands and feet.

Explanation:

plz mark me as brilliant plz

Due to the advent of technology, the everyday life of people has undergone a drastic change. Life, in the present times, has become so much more comfortable, easy, dynamic, and fast. However, at the same time, life has also become a lot more lethargic, anti-social and preposterous like the computers that we have in our houses. Our smartphones, laptops, and other such gadgets have become a part and parcel of our lives, things that we somehow cannot live without.

It is because of innovation that human race is surviving the exceptional populace development and without it, humankind would have vanished long prior in a worldwide craving Armageddon. In any case, then again there are negative impacts of innovation waiting in our lives. By dismissing essential human and mammalian impulses like mingling, family life and physical effort, we have turned out to be manufactured and empty. Despite the fact that we are receiving rewards, we are losing the little of the valuable mankind left in our lives due to over-liberality.

Taking everything into account, innovation has influenced our lives profoundly. We just can’t envision living without it. It has expanded our life expectancy and nature of living. Where it has brought people closer in various ways, it has also contributed towards drifting people apart from each other. Without it, our lives would have been less difficult, harder, poorer, secluded, unoriginal, disengaged and perilous.

comic books originally published in japan​

Answers

Answer:

not only Japan but also other country but most of the comic book are from japan

PLZ PLZ PLZ HELP THS IS DUE TODAY!!!
Dealing with advertising clutter is one of the challenges of database marketing.


False

True

Answers

I believe it’s true
Maybe it might be true

10. Which type of utility do you believe has the greatest impact on price? Explain

Answers

Answer: Place utility

Explanation:

The type of utility that is believed to have the greatest impact on price is the place utility. Place utility simomy means making of goods available to the customers when they're needed.

The place or location where customers but their products is vital to customers as they put values on products based on the place utility. This can be seen as companies make sure that their products are easily accessible to their customers.

What does the phrase “last in, first out” mean?

Answers

Explanation:

LIFO stands for “Last-In, First-Out”. It is a method used for cost flow assumption purposes in the cost of goods sold calculation. The LIFO method assumes that the most recent products added to a company's inventory have been sold first. The costs paid for those recent products are the ones used in the calculation.

biggest transition between school and post school​

Answers

you won’t have such a strict schedule everyday, you won’t always have work to do.

Richard has recently finished college and is about to prepare for his exam to become a certified public accountant. He wants to talk to other accountants to learn how best to prepare for this exam. Which professional organization would be most helpful for him to join?

Answers

Answer:

The accountant federation

Answer the following question in 3-4 complete sentences.

Which is more effective in transmitting information about a bird, Brancusi’s Bird in Space or John Audubon’s Wild Turkey?

Answers

Answer:

It actually depends on the information the artist wants to transmit. As, If the artist wants to show the graceful attributes and the motion of a bird, then Bird in Space would be most effective.

Hope this helped

Hope this helped ALL THE BEST !!

Answer:

At first sight Wild Turkey by John Audubon transmits more information because of its details, colors and because it is a literal painting. However, Brancusi’s Bird in Space is a sculpture that represents the speed and movement of birds, which gives also information although it is not literal. It can have many interpretations.

Explanation:

_____________ data can be obtained through the use of surveys, observation, and focus groups.

Answers

Answer:

Primary

Explanation:

Im Smart

1. Which cleaning solvent is used for removing dust, grease oil, paint and others?

a. gasoline
b. kerosene
c. thinner
d. water


_____ 2. All of the following are examples of lubricant EXCEPT.

a. all-purpose anti-rust lubricant
b. anti-rust lubricant spray

c. engine oil
d. wire pushing lubricant


_____ 3. All of the following is the action to identify and eliminate all unnecessary items from your

work place and dispose them?

a. sanitize
b. self-discipline
c. sort
d. systemize


_____ 4. Which of the following IS NOT the way to maintain and storing tools and equipment for hand

tools?

a. clean dirt and debris from tools after each use

b. lightly sand rough wooden handles and apply linseed oil

c. repair loose handles

d. sharpen blades of power tools


_____ 5. Which of the following IS NOT the way to maintain and storing tools and equipment for

power tools?

a. clean the air filter
b. change the oil

c. lubricate non-moving parts
d. replace spark plugs​

Answers

Ant:

s are drrrr

Export

fw

What are three things you will need each month to balance your checking account?

Answers

Answer:

Explanation:

Balancing your account means adding up all of your debits and credits (deposits and withdrawals), then adding the result to your statement's starting balance. The result will be your current account balance. Still, balancing your checking account is a good practice.

Select the correct answer.
What is an opportunity cost?
Olost benefits of other opportunities
cost of taking up an opportunity
costs incurred to receive the benefits of an opportunity
O costs incurred when the wrong opportunity is selected

Answers

Answer:

lost benefits of other opportunities

Explanation:

Answer: lost benefits of other opportunities

Explanation:

insurance is the way a person or business is protected from :
losing interest
losing money
losing value
losing investments

Answers

Answer:

losing money

Explanation:

Helps save you from the out of pocket expense if something bad were to happen.

For example if your roof was damaged by a natural disaster it could cost thousnads of dollars out of a persons pocket.

Insurance will pay the cost to repair it allowing you to be protected from losing money.

Adams Manufacturing allocates overhead to production on the basis of direct labor costs. At the beginning of the year, Adams estimated total overhead of
$322,500; materials of $405,000 and direct labor of $215,000. During the year Adams incurred $413,000 in materials costs, $414,800 in overhead costs and
$219,000 in direct labor costs. Compute the predetermined overhead rate.

Answers

Answer:

150%

Explanation:

Computation of the predetermined overhead rate

Using this formula

Predetermined overhead rate=Estimated overhead/Estimated direct labor cost

Let plug in the formula

Predetermined overhead rate=$322,500/ $215,000

Predetermined overhead rate=1.5*100

Predetermined overhead rate=150%

Therefore Predetermined overhead rate will be 150%

Your union goes on strike. The average worker makes $52,000 per year. Because they pay dues, the union will cover 50% of their lost wages for 10 weeks. If the strike lasted 12 weeks, how much money in lost wages would the union worker lose?

Answers

Answer:  $7,000

Explanation:

Dont know. Just guessed and got it correct.

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isang talaan na nagpapakita sa dami ng kaya at gostong bilhin ng mamimili sa ibat ibang presyo. !!!!!!!!!!!!!!!!!!!!!!!Explain how traveling in a flock is an adaptation of organisms including birds, dinosaurs, and many other animals. A clothing store manager uses a 12 percent markup on the merchandise. At what price will he sell pants that were purchased for $40? How do I solve this equation step by step? How organisms get ATP out of the food they eat what is 3/8 divided by 4/5 PLS HELP I RLY NEED IT If the sin 30 = 1/2then which statement is true? (6 points)a. cos 150 = 0, because the cosine and sine are supplements b. cos 60 = 0, because the cosine and sine are complements c. cos 150 = 1, because the cosine and sine are supplements d. cos 60 = 1/2, because the cosine and sine are complements Which statement summarizes how the chart illustrates the author's position on ethanol?A)The chart supports the author's claim that corn is a better alternative thansoybeans.The chart supports the author's claim that more corn used for ethanolmeans less corn for livestock.B)C)The chart shows that the history of agriculture has proven that corn priceswill level out naturally.D)The chart supports the author's claim that not only the price of corn, butthe prices of wheat and soybeans have risen as well. We have been waiting for the bus noon. The trapezoid shown is divided into a right triangle and a rectangle. 6x + 6y=-65x + y=-13 The Elderly DriverIt was late in the afternoon on a sunny April day. Maybe it was the sun in her eyes, but 82-year-old Janet found herself in her car in a ditch at the side of the road, unsure of how she got there. Once at the hospital, her son and daughter joined her and heard the good news that Janet had escaped with just a broken arm. The police report strongly suggested that she had swerved off the road, but it was not clear why.This was not Janet's first driving "episode", in fact, her driving had been a constant worry to her daughter for over 2 years. Her daughter often offered to take her Mom shopping and insisted that she do the driving when they were together. "Don't you trust me?" was the only thanks the daughter received. When alone, Janet continued to drive herself, staying off the free way and increasingly driving only during the day. She knew it was not as easy as it used to be, but it was her lifeline to independence.Then, a few months after the April incident, the form for Janet's license renewal arrived. A vision test and a physical exam were required, along with a doctor's certification that Janet was in good health and capable of driving; however, no road test was required. So Janet made a doctor's appointment, and at the end of it, she left the forms with a note for the doctor saying, "To the best doctor I have ever had. Thanks for filling this out. You know how much driving means to me."On Janet's way home from the doctor's office, it happened. She was driving down the road when suddenly she was crossing that yellow line and heading toward an oncoming car. The teenage driver might have been going a little fast, but Janet was in the wrong lane and the head-on collision killed the 16-year-old passenger in the front seat who was not wearing a seat belt. The 18-year-old driver walked away from the collision unharmed, thanks to a seat belt and an inflated airbag.Janet was never the same emotionally. And despite escaping the collision with just a few bruises, the loss of her driver's license symbolized the end for her. Those lost weekly shopping trips and the strangers in the assisted living center were not the same as living in her own home. The young man in the collision screaming for help woke her up almost every night. It was only a year after the collision when Janet died, and it was just like she had said: "Take my license away and it will kill me."Discussion QuestionsHow does this case reflect the important issue of balancing the legal rights of the individual and the rights of society as a whole?What role do you believe healthcare providers should play in implementing driving laws and regulations?Identify any changes you would make to prevent the types of outcomes that occurred in this caseHow would you communicate the lessons learned in this case to new and inexperienced drivers? Tasha graphs a star with one tip at point S(-3,1). What are the coordinates of the corresponding point after a 90 rotation about the origin? Why does Juan censor his own letter "without regret"? How is his final action as a censor an example of irony, or a seeming contradiction? How does this ending illustrate Valenzuela's point of view about the political situation in Argentina? Support your response with evidence from the text. what did jefferson and his colleages hope to acheve by creating the declaration of independence Aubrey has a new art box in the shape of a rectangular rectangular prism. The box is 12 cm space, by 20cm, 5 cm the only thing in the art box is a new pink eraser with the dimensions shown below. What is the volume of the art box not taken up by the eraser? 1. The ratio of Allison's weight to Brett's weight was 4:5. If Allison's weightincreased by 5 lbs. and Brett's weight decreased by 1 PLS HELP. I dont understand math Adonde vas esta niche con Los amigos Three students snow shoveled driveways and sidewalks after the last snowstorm. They earned a total of $210. If they split the money evenly how muchdid each student recelve?