1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Allushta [10]
3 years ago
5

The image of an object which is 10cm from a lens is formed on the same side as the object. If the image is 10cm behind the objec

t, Find the focal length of the lens.
​
Biology
1 answer:
andre [41]3 years ago
4 0

Answer:

Focal length is 6.67 cm.

Explanation:

Object distance, u, from the lens = 10 cm

Image distance, v, to the lens = 10 cm + 10 cm

                                                 =  20 cm

Apply the lens formula to determine the focal length, f, of the lens.

\frac{1}{f} = \frac{1}{u} + \frac{1}{v}

 = \frac{1}{10} + \frac{1}{20}

    = \frac{2 + 1}{20}

\frac{1}{f}  = \frac{3}{20}

Find the inverse of both sides, so that;

f = \frac{20}{3}

  = 6.67

f = 6.67 cm

The focal length of the lens is 6.67 cm.

You might be interested in
A gradual increase in atmospheric carbon dioxide would warm earths atmosphere becuse carbon dioxide is
Orlov [11]
<span>A gradual increase in atmospheric carbon dioxide would warm earths atmosphere becuse carbon dioxide is <em>a greenhouse gas</em></span>
8 0
3 years ago
What does each person do just before becoming infected?
Makovka662 [10]

Answer:

They became careless and transferred to every body saying i cant all of us has to die

7 0
3 years ago
What would be the complimentary side of this DNA molecule?<br> TAG CCA TTG CGT GCC TGG CAAT
solniwko [45]
No clue. So sorry… I need points….
7 0
3 years ago
If a muscle fiber were to suddenly and permanently stop producing ATP the fiber would no longer be able to actively transport ca
lisov135 [29]

No muscle contraction will be observed.

<h3>What is the effect of calcium concentration on muscle contraction?</h3>

The concentration of calcium ions in the muscle cells help in contraction and relaxation of muscles fibers.

Release of calcium ions initiate muscle contraction.

Therefore, there will be no contraction of muscle if calcium ions are not transported out from the sarcoplasm.

Learn more about muscle contraction and calcium ions at: brainly.com/question/14760686

#SPJ1

7 0
2 years ago
When did the Devonian period start and end?
lyudmila [28]
The Devonian Period was part of the better known Paleozoic Period. Some scientist think it was 416 million years ago.  It was the time of the great fish. It gets its name from when red rocks from Devon, England were also found in North America. It is believed that during this period parts of North America, Europe, Russia and Greenland crashed together making a new land mass. Scientists believe this period ended about 354 million years ago when land plants began to take over and much of what was an ocean disappeared.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following colors of soil is the best for a wildlife habitat
    6·2 answers
  • True or false: plants do not need cellular respiration because they carry out photosynthesis
    11·1 answer
  • How do the population in a community depend on each other
    15·1 answer
  • Mucin is a protein present in saliva and other secretions. When mixed with water, it becomes the slippery substance known as muc
    7·1 answer
  • What effect will high salt intake have on urine volume?
    15·1 answer
  • The steps of the formation sequence for a terrestrial planet are shown below. what is the correct order of these steps? - accret
    13·1 answer
  • How is population growth related to resource use and pollution?
    7·1 answer
  • What are the three types of counseling established by marine corps policy?
    13·1 answer
  • Please help me!!! <br> DUE TOMORROW!!<br> 55 POINTS!!
    9·1 answer
  • Which best helps scientists determine the age of fossil
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!