Question

1. A converging lens has a focal length of 14 cm. An object is 18 cm to the left of the lens.

- Find the image position
- The magnification
- Real or virtual?
- Erect of inverted?

e. Draw the ray diagram using principal rays and a ruler.

f. If the object was located 7 cm to the left of the lens, draw the ray diagram.

Answer #1

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...

A converging lens with a focal length of 4.8 cm is
located 24.8 cm to the left of a diverging lens having a
focal length of -15.0 cm. If an object is located 9.8
cm to the left of the converging lens, locate and describe
completely the final image formed by the diverging lens.
Where is the image located as measured from the diverging
lens?
What is the magnification?
Also determine, with respect to the original object whether the
image...

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 converging lens with a focal length of 6.20 cm forms an image
of a 4.80 mm -tall real object that is to the left of the lens. The
image is 2.00 cm tall and erect.
a) Where are the object and image located?
b)Is the image real or virtual?

An optical system consists of two lenses separated by 35 cm –
first is converging with focal length 10 cm and the second is
diverging with focal length 15 cm. An object is 20 cm to the left
of the first lens. Find the position of the final image using both
a ray diagram and the thin-lens equation. Is the image real or
virtual? Erect or inverted? What is the overall magnification of
the image?

A lens has a focal length of 15 cm. An object is located 8 cm
from the surface of the lens.
a. Calculate how far the image is from the lens.
b. Tell whether the image is real or virtual.
c. Calculate the magnification of the image (state whether the
image is erect or inverted).

A convex lens with a focal length of magnitude 4.0 cm and a
concave lens with a focal length of magnitude 10 cm are separated
by a distance of 18 cm as shown in the diagram below. The convex
lens is on the left, and the concave lens is on the right. An
object is then placed 6.0 cm to the left of the convex lens.
Locate the final image. State the distance of the final image
to the right...

A converging lens of focal length 20 cm is at the 0 cm mark of
a long ruler. An object is placed 30 cm to the left of the lens.
The object is 2 cm tall.
Where is the image formed and what is its height and it is
inverted or upright?
Is the image from part a real or virtual? Explain
A second lens of focal length 5.0 cm is added at the 70 cm
mark. Using the first...

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 -14.0 cm. Locate the
images for each of the following object distances. For each case,
state whether the image is real or virtual and upright or inverted,
and find the magnification.
(a) 28.0 cm
______________ cm
real, erect
real, inverted
virtual, erect
virtual, inverted
magnification ________________ X
(b) 14.0 cm
______________ cm
virtual, erect
virtual, inverted
magnification ___________________ ?
(c) 7.0 cm
_______________ cm
real, erect
real, inverted
virtual, erect
virtual, inverted...

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