Question

An object **8** cm high is placed 12 cm to the left
of a converging lens of focal length **8** cm. A
second converging lens of focal length **6** cm is
placed **36** cm to the right of the first lens. Both
lenses have the same optical axis. Find the position, size and
orientation of the image produced by the two lenses in combination.
Confirm the validity of your result by drawing a ray-tracing
diagram.

Answer #1

A converging lens with a focal length of +30 cm is placed 40 cm
to the left of a diverging lens with a focal length of -40 cm. An
object is placed 60 cm to the left of the converging lens. What is
the location and orientation of the image produced by the
combination of lenses?
Why is the answer B?
(a) Upright, on the right of the diverging lens and larger than
the main object
(b) Inverted, on the...

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?

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...

An object is placed
4949
cm to the left of a converging lens of focal length
1717
cm. A diverging lens of focal length
−20−20
cm is located
1717
cm to the right of the first lens. (Consider the lenses as thin
lenses).
a) Where is the final image with respect to the second
lens?

An 9.0 cm toy rocket is placed 15 cm to the left of a converging
lens having a focal length of 6.0 cm. A second lens is located 36
cm to the right of the first lens (see Figure). The final image
formed by the two lenses is located 13 cm to the left of the second
lens.
(a) What is the focal length of the second lens? Is it converging
or diverging?
(b) How tall is the final image?...

A converging lens of focal length f1 = +22.5 cm is placed at a
distance d = 60.0 cm to the left of a diverging lens of focal
length f2 = −30.0 cm. An object is placed on the common optical
axis of the two lenses with its base 45.0 cm to the left of the
converging lens. (The thin-lens approximation may be assumed to
hold.) (a) Calculate the location of the final image and its
overall magnification with respect...

An object is placed 19 cm to the left of a converging lens of
focal length 26 cm. A diverging lens of focal length 10 cm is 25 cm
to the right of the converging lens. Find the position and
magnification of the final image.
______cm
magnification_______X

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 2.05-cm-tall object is placed 30.0 cm to the left of a
converging lens with a focal length f1 = 20.5 cm . A diverging
lens, with a focal length f2 = -42.5 cm , is placed 30.0 cm to the
right of the first lens.
Q:How tall is the final image of the object?

A 2.05-cm-tall object is placed 30.0 cm to the left of
a converging lens with a focal length f1 = 21.0 cm . A diverging
lens, with a focal length f2 = -42.5 cm , is placed 30.0 cm to the
right of the first lens.
How tall is the final image of the object?________cm

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