Homework Answers
f1 = 3 cm
f2 = -3 cm
1/f = 1/f1 + 1/f2
1/f = 1/3 - 1/3
f = infinity
Focal length of combination = infinity
Power = 1/f = 0
This combination will behave as simple surface and it will not affect direction of light
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2. Two thin lenses, one a converging lens and the other a diverging lens, are arated by 1.00 m along the same principal axis, as shown in the figure. The magnitude of the focal length of the converging lens is 25 cm, while the magnitude of the focal length of the diverging lens is 40 em. An object 8,25 cm tall is placed 35 cm to the left of the converging lens. (a) Where is the final image produced by...
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Two lenses are placed 12 cm apart as shown in the figure. The
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will thumbs up pls write neatly A certain child's near point is 15.0 cm; her far...
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12) Two lenses are placed 13 cm apart. The first lens is a converging lens with...
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2. Two thin lenses, one a converging lens and the other a diverging lens, are arated by 1.00 m along the same principal axis, as shown in the figure. The magnitude of the focal length of the converging lens is 25 cm, while the magnitude of the focal length of the diverging lens is 40 em. An object 8,25 cm tall is placed 35 cm to the left of the converging lens. (a) Where is the final image produced by...
Two lenses are placed 12 cm apart as shown in the figure. The
converging lens has a focal length of 20 cm and the diverging lens
has a focal length of � 10 cm. An object is located 50 cm in front
of the converging lens as shown.
Where along the
principle axis is the location of the image formed by only the
converging lens?
Answer
between the two
lenses
at the diverging
lens
to the left of
the converging...
will thumbs up pls write neatly
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The power of a lens is expressed in diopters (D). You have probably seen this used in eyeglass prescriptions where converging lenses (reading glasses) are prescribed in positive diopters and diverging lenses (correction for near-sightedness) are prescribed using negative diopters. The power, in diopters, is obtained by taking the inverse of the focal length, after the focal length is converted to meters. The power of two or more adjacent lenses is simply the sum of their individual powers. D =...
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