Question

1. Microscopes are made of 2 convex lenses with a focal length of 95.0 cm and 15.0 cm. If both the object and image are at an infinite position, find the angular magnification of the telescope.

2) Find the image height if using a telescope to look at the 60.0 m tall building at a distance of 3,00 km.

Answer #1

Consider a convex lens with a focal length of 5.00 cm. An object
is located at 12.50 cm. The object is 5.50 cm tall. Draw the ray
diagram to scale. Determine the image distance, the height of the
image, the magnification and the characteristices of the image.

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=

1) Two convex lenses, both with focal length 1.5 m, are placed
such that the light from a 4 cm tall object passes through each.
The object is placed 4.5 m from the first lens, and the lenses are
3 m apart. Where will the image from the first lens be? Will it be
real or virtual? Will it be upright or inverted? Where will the
final image be (using both lenses)? Will it be real or virtual?
Upright or...

Two lenses, one converging with focal length 21.0 cm and one
diverging with focal length − 12.0 cm , are placed 25.0 cm apart.
An object is placed 60.0 cm in front of the converging lens.
Part A
Find the final image distance from second lens. Follow the sign
conventions.
Express your answer to two significant figures and
Part B
Determine the magnification of the final image formed. Follow
the sign conventions.
Express your answer using two significant figures
include...

Two lenses, one converging with focal length 20.5 cm and one
diverging with focal length ? 10.5 cm , are placed 25.0?cm apart.
An object is placed 60.0?cm in front of the converging lens.
Part A Find the final image distance from second lens. Follow
the sign conventions. Express your answer to two significant
figures and include the appropriate units. di2 = Part B Determine
the magnification of the final image formed. Follow the sign
conventions. Express your answer using...

Two converging lenses with focal lengths of 40 cm and 19 cm are
10 cm apart. A 3.2 cm tall object is 15 cm in front of the 40 cm
focal-length lens. Calculate the distance between the final image
and the 19 cm focal-length lens and the final image height.

Two converging lenses, each of focal length 15.0 cm, are placed
40 cm apart. An object is placed 30cm in front of one lens.
a.) Where is the image located?
b.) What is the magnification of the system?

An object 2.75 cm high is placed 19.7 cm from a convex mirror
with a focal length of 7.80 cm.
(a) Find the position of the image.
cm
(b) Find the magnification of the mirror.
(c) Find the height of the image.
cm
Suppose the object is moved so it is 3.90 cm from the same
mirror. Repeat parts (a) through (c).
(a) q = cm
(b) M =
(c) h' = cm

When two lenses are used in combination, the first one forms an
image that then serves as the object for the second lens. The
magnification of the combination is the ratio of the height of the
final image to the height of the object. A 1.50-cm-tall object is
58.0 cm to the left of a converging lens of focal length 40.0 cm. A
second converging lens, this one having a focal length of 60.0 cm,
is located 300 cm to...

Two converging lenses, the first with focal length f1 = 25 cm
and the second with focal length f2 = 15 cm are separated by a
distance of ` = 65 cm. An object is place at a distance of do1 = 45
cm to the left of the first lens.
(a) What will be the distance from the second lens that the final
image is produced? Is this image to the left or right of the second
lens? Justify...

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