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
ELEN [110]
3 years ago
15

When an object is at a distance of twice the focal length from a concave lens, the image produced is virtual and smaller than th

e object. What happens to the image if the object is shifted closer to the lens to a point one focal length away from it?
The image produced is virtual and enlarged.
The image produced is virtual and smaller than the object.
The image produced is real and enlarged.
The image produced is real and smaller than the object.
The image produced is virtual and of the same size as the object.
Physics
2 answers:
evablogger [386]3 years ago
5 0

Answer:

The image produced is virtual and smaller than the object.

Explanation:

For concave lens we know that

\frac{1}{d_i} + \frac{1}{d_o} = \frac{1}{f}

here we have

\frac{1}{d_i} + \frac{1}{2f} = -\frac{1}{f}

\frac{1}{d_i} = - \frac{3}{2f}

d_i = -\frac{2f}{3}

Magnification will be given as

M = \frac{d_i}{d_o}

M = -2/3

so image will be virtual and formed behind the lens

Now the object position is shifted to new position at distance of focal length

now again we will have

here we have

\frac{1}{d_i} + \frac{1}{f} = -\frac{1}{f}

\frac{1}{d_i} = - \frac{2}{f}

d_i = -\frac{f}{2}

Magnification will be given as

M = \frac{d_i}{d_o}

M = -1/2

So again we will have virtual image with magnification 1/2

so here size of image is less than object size by factor of 1/2 and it is virtual

Elenna [48]3 years ago
3 0
The right answer for the question that is being asked and shown above is that: "The image produced is virtual and of the same size as the object." the image if the object is shifted closer to the lens to a point one focal length away from it is that The image produced is virtual and of the same size as the object.<span>
</span>
You might be interested in
1. Your new designer chair has an S-shaped tubular metal frame that behaves just like a spring. When your friend, who weighs 600
Anvisha [2.4K]

Explanation:

Given that,

Weight of the friend, W = 600 N

When the friend sits on the metal frame it bends downward 4 cm, we can say that the compression in the it is 4 cm or 0.04 m

To find,

Spring constant for this chair or k

Solve :

The weight of an object is equal to the force exerted by the gravitational force, F = 600 N

According to Hooke's law, the force exerted by the spring is given by :

F = kx

k is the spring constant

k=\dfrac{F}{x}

k=\dfrac{600\ N}{0.04\ m}

k = 15000 N/m

Therefore, the spring constant of the spring is 15000 N/m.

5 0
3 years ago
Increasing cardiorespiratory fitness levels is difficult for experienced athletes because __________.
Olin [163]
The answer is
C. They have all ready achieved high levels of cardio respiratory fitness.
6 0
3 years ago
Jill applies a force of 250 N to a machine. The machine applies a force of 25 N to an object. What is the mechanical advantage o
Vinvika [58]

Mechanical advantage is defined as the ratio of output load to the input load. The mechanical advantage of the machine will be 0.1.

<h3>What is mechanical advantage?</h3>

Mechanical advantage is a measure of the ratio of output force to input force in a system,

It is used to obtain the efficiency of forces in levers and pulleys. It is an effective way of amplifying the force in simple machines like levers.

The theoretical mechanical advantage is defined as the ratio of the force responsible for the useful work in the system to the applied force.

Given

applied force = 250 N

Output force = 25

Mechanical advantage = work output / work input

\rm{Mechanical advantage}=\frac{F_O}{F_I}

\rm{Mechanical advantage}=\frac{25}{250}

\rm{Mechanical advantage}=0.1

Hence the mechanical advantage of the machine will be 0.1

To learn more about the mechanical advantage refer to the link;

brainly.com/question/7638820

3 0
2 years ago
What units would you use to measure the amount of liquid inside a can of soda?
PtichkaEL [24]
Milliliters if you're doing science. 
8 0
3 years ago
What is dark energy?
expeople1 [14]
Dark energy is a theoretical repulsive energy that causes the acceleration to the expansion of the universe. Among the choices, the nearest answer would be D. Dark energy can also be defined as a new form of energy, that is a dynamic field that fills up space but has an effect opposite to that of normal energy.
4 0
3 years ago
Other questions:
  • How do electromagnetic forces work?
    8·1 answer
  • True or False: If your gas pedal jams, you should turn the key to lock to lock the steering wheel.
    8·2 answers
  • A thin coil has 16 rectangular turns of wire. When a current of 3 A runs through the coil, there is a total flux of 4 × 10-3 T·m
    7·1 answer
  • You are driving home from school steadily at 95 km/h fro 130 km. It begins to rainand you slow to 65 km/h. You arrive home after
    7·1 answer
  • A horse shoe magnet is placed on a mass balance such that a uniform magnetic field of magnitude B runs between it from North to
    8·1 answer
  • B) A non-inductive load takes a current of 15 A at 125 V. An inductor is then connected
    12·1 answer
  • For a wave, what term is defined as the maximum height of a crest, or depth of a trough, relative to the normal level
    8·1 answer
  • प्रकाशको आवर्तनको परिभाषा लेख्नुहोस् । कन्भेक्स ऐनाको अगाडि तपाई उभियौ भने तपाईको कस्तो आकृति बन्छ, लेख्नर
    9·1 answer
  • Why are carbon atoms able to form many organic compounds?
    9·1 answer
  • Please help me to fix this sentence to sentence with more delivery and fluency
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!