Question

An
object is placed 5cm in front of a diverging lens of focal length
25 cm. A second converging lens of focal length 15cm is positioned
20 cm to the right of the first lens. What is the final image
distance? What is the magnification of the final image? Is it
upright of inverted? Real or virtual?

Answer #1

A) An object is placed 26 cm in front of a converging lens of
focal length 5 cm. Another converging lens of focal length 10 cm is
placed 20 cm behind the first lens.
1) Find the position of the final image with respect to the second
lens. ____cm
2) Find the magnification of the final image. _____
B) A diverging lens of focal length −12cm projects the image of
an object onto a wall. What is the object distance if...

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...

An
object is placed 30 cm to the left of a converging lens of focal
length 10 cm. A diverging lens of focal length -15 cm is 20 cm to
the right of the converging lens.
a) Where is the image created by the first lens relative to
the first lens?
b) Is it real or virtual?
c) Where is the final image relative to the second lens?
d) Is it real or virtual?
e) What is the final lateral...

A diverging lens has a focal length of magnitude 21.8 cm.
(a) Locate the images for each of the following object
distances.
43.6 cm
distance
cm
location
---Select--- in front of the lens behind the lens
21.8 cm
distance
cm
location
---Select--- in front of the lens behind the lens
10.9 cm
distance
cm
location
---Select--- in front of the lens behind the lens
(b) Is the image for the object at distance 43.6 real or
virtual?
realvirtual
Is the...

A diverging lens has a focal length of magnitude 17.6 cm.
(a) Locate the images for each of the following object
distances.
35.2 cm
distance
cm
location
---Select--- in front of the lens behind the lens
17.6 cm
distance
cm
location
---Select--- in front of the lens behind the lens
8.8 cm
distance
cm
location
---Select--- in front of the lens behind the lens
(b) Is the image for the object at distance 35.2 real or
virtual?
realvirtual
Is the...

A diverging lens has a focal length of magnitude 24.4 cm.
(a) Locate the images for each of the following object
distances.
48.8 cm
distance
cm
location
---Select--- in front of the lens behind the lens
24.4 cm
distance
cm
location
---Select--- in front of the lens behind the lens
12.2 cm
distance
cm
location
---Select--- in front of the lens behind the lens
(b) Is the image for the object at distance 48.8 real or
virtual?
realvirtual
Is the...

An object is placed 100 cm in front of a diverging lens having a
focal length of -25 cm. A converging lens with a focal length of
magnitude 32.5 cm is placed 30 cm past the first lens. What is the
lateral magnification of this system of lenses?

A converging lens, which has a focal length equal to 8.4 cm, is
separated by 30.5 cm from a second lens. The second lens is a
diverging lens that has a focal length equal to -13.7 cm. An object
is 16.8 cm to the left of the first lens.
(a) Find the position of the final image using both a ray
diagram and the thin-lens equation. __________cm to the right of
the object
(b) Is the final image real or...

A 1.8 cm tall object is placed 5 cm to the left of a converging
lens (lens #1) with a focal length of 1.3 cm. To the right of this
converging lens is a diverging lens (lens #2) that has a focal
length of 2.6 cm. The diverging lens is placed 22.4 cm from the
converging lens. Where is the final image, is it real or virtual,
and is it upright or inverted?

A diverging lens has radius of focal length f = –10.0
cm. An object is placed a certain distance dO from the mirror along
its principal axis.
For each value of dO in the table, fill in (i) the
distance dI from the lens to the image; (ii) the lateral
magnification m of the image; (iii) whether the image is real or
virtual; (iv) whether the image is on the same side of the lens as
the object or the...

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