a converging lens (f=20cm) and a second converging lens (f=30cm)
are placed 80cm apart, and an...
a converging lens (f=20cm) and a second converging lens (f=30cm)
are placed 80cm apart, and an object is placed 30cm in front of the
first lens. Objects height is 2cm. What is the total magnification
of the system?
A diverging lens (f = -20cm) is placed 10cm to the left of a
plane mirror. A match stick is placed 25cm to the left of the lens.
(I) Where is the final image of the stick? (II) Is the image real
or virtual? Upright or inverted? (III) What is the magnification?
(IV) Where is the final image relative to the mirror?
A diverging and converging lens with equal focal lengths of f =
0.5 m are placed so that their "fake" focal points overlap. If you
place an object 2 m to the left of the left most lens, where is the
final image formed? What are its attributes? Draw the ray diagram
to double-check your work.Suppose you are allowed to use these the
same type of lenses with what ever focal lengthyou need. What type
of devise you can build...
A converging lens with a focal length of 4.0cm is to the left of
a second identical lens. When a feather is placed 11cm to the left
of the first lens, the final image is the same size and orientation
as the feather itself.
What is the separation between the lenses?
Express your answer using two significant figures.
A lens system consists of two lenses 14.0 cm
apart. The first lens is convex (converging) and has a focal length
of 6.72 cm. An object is placed 3.29 cm in front
of the first lens and produces an image 7.00 cm behind the
second lens.
Q1:What is the focal length of the second
lens?
A:5.215 cm
Q2:What is the magnification of the final
image?
A2:
Please provide A2 and show all work, I already
have the correct answer to...
When an object is placed at the proper distance to the left of a
converging lens, the image is focused on a screen 31.0 cmto the
right of the lens. A diverging lens is now placed 14.2 cm to the
right of the converging lens, and it is found that the screen must
be moved 19.5 cm farther to the right to obtain a sharp image.
What is the focal length of the diverging lens?
......... cm
A diverging lens of focal length -12.5 cm is placed 40.0 cm from
a converging lens of unknown focal length. A 15.2 cm
tall erect object is placed 25.3 cm in front of the diverging lens
which is to produce an image on a screen that is twice the size of
the original object but inverted.
A)
Where should the screen be located to produce a clear image?
Give the distance from the converging lens to the screen in
cm.
B)...
A converging lens has a focal length of 15 cm. If an object is
placed at a distance of 5 cm from the lens,
a. find the image position
d i = _____ cm (include sign +/-)
b. find the magnification
M = _____(include sign +/-)
c. characterize the resulting image.
________(real or virtual)
________(enlarged or reduced)
________(upright or inverted)
a) The focal length of a converging lens is 35 cm. An object is
placed 100 cm in front of the lens. Describe the image.
b) The focal length of a converging lens is 35 cm. An object is
placed 30 cm in front of the lens. Describe the image.
c) The focal length of a diverging lens is 35 cm. An object is
placed 100 cm in front of the lens. Describe the image.
d) The focal length of...
An object is placed 49 cm to the left of a converging lens of
focal length 21 cm. A diverging lens of focal length − 29 cm is
located 10.3 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?
b)What is the linear magnification of the final image?