Question

Two lenses are placed a distance of 20.0 cm apart. The
leftmost lens is a converging lens with a focal length of 10.0 cm
while the seconds lens is a diverging lends with a focal length of
14.0. If an object is placed 9.0 cm to the left of the converging
lens, determine the magnification of the two lenses combined.

Answer #1

Two converging lenses are placed 15 cm
apart. The lens A (on the left) has a focal length of 5 cm, and
lens B (on the right) has a focal length of 4 cm. An object is
placed 8 cm to the left of lens A. Draw the scenario and confirm
your findings using the equations to find:
a) the final
image distance
b) the
magnification
c) is the
image real or virtual?

Two converging lenses are placed 40.0 cm apart. The focal length
of the lens on the right is 21.0 cm , and the focal length of the
lens on the left is 10.5 cm . An object is placed to the left of
the 10.5 cm focal-length lens. A final image from both lenses is
inverted and located halfway between the two lenses.
How far to the left of the 10.5 cmcm focal-length lens is the
original object?

Two lenses are placed 50 cm apart. The first lens is converging
and has a focal length of 20 cm, and the second lens is diverging
and has a focal length of 15 cm. If an object is placed 55 cm in
front of the first lens, where is the final image located? Give
your answer in relation to the second lens. What is the overall
magnification? Is the final image upright or inverted? Is the final
image real or...

Two lenses, one converging with focal length 20.0 cm and one
diverging with focal length -11.7 cm , are placed 25.0 cm apart. An
object is placed 60.0 cm in front of the converging lens.
Determine the position of the final image formed.
Express your answer with the appropriate units.
di =
Determine the magnification of the final image formed.
m=

A converging lens is placed at
x = 0,
a distance d = 11.0 cm to the left of a diverging lens
as in the figure below (where FC and
FD locate the focal points for the converging
and the diverging lens, respectively). An object is located at
x =
−1.10
cm to the left of the converging lens and the focal lengths of
the converging and diverging lenses are
3.50 cm
and
−8.60 cm,
respectively.
HINT
(a)
Determine the...

A converging lens is placed at
x = 0,
a distance d = 11.0 cm to the left of a diverging lens
as in the figure below (where FC and
FD locate the focal points for the converging
and the diverging lens, respectively). An object is located at
x =
−1.10
cm to the left of the converging lens and the focal lengths of
the converging and diverging lenses are
3.50 cm
and
−8.60 cm,
respectively.
HINT
(a)
Determine the...

Two converging lenses, each of focal length 14.9 cm, are placed
39.9 cm apart, and an object is placed 30.0 cm in front of the
first lens. Where is the final image formed?
The image is located x cm ---Location--- in front of
the second lens.
What is the distance?
What is the magnification of the system?

An object 2.00 cm high is placed 31.1 cm to the left of a
converging lens having a focal length of 26.1 cm. A diverging lens
having a focal length of −20.0 cm is placed 110 cm to the right of
the converging lens. (Use the correct sign conventions for the
following answers.)
(a) Determine the final position and magnification of the final
image. (Give the final position as the image distance from the
second lens.)
Find
final position in...

Two lenses are placed along the x axis, with a
diverging lens of focal length −8.70 cm on the left and a
converging lens of focal length 17.0 cm on the right. When an
object is placed 14.0 cm to the left of the diverging lens, what
should the separation s of the two lenses be if the final
image is to be focused at x = ∞?

Two lenses are placed along the x axis, with a diverging lens of
focal length −7.40 cm on the left and a converging lens of focal
length 15.0 cm on the right. When an object is placed 14.0 cm to
the left of the diverging lens, what should the separation s of the
two lenses be if the final image is to be focused at x = ∞?

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