Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 32, Problem 74P
(a)
To determine
The near point of the person at age 45.
(b)
To determine
The near point of person at age 55.
(c)
To determine
The power of lens required when the person is at age of 55.
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Students have asked these similar questions
A telescope has an upward-pointing concave mirror of focal length 40 cm which, every night, collects the light from distant stars and focuses it on a camera so it can be analyzed. During the daytime shutdown, however, a 3-cm-long praying mantis creeps along the wire that lies on the axis of the telescope. He pauses at a distance of 60 cm from the mirror, and with his feet holding onto the wire, extends his body horizontally (mantises can do that) so that his body is perpendicular to the axis of the mirror. Is his image real or virtual? Is it upright or inverted? How big is it? Where is it?
A person with a near point of 75.0 cmcm, but excellent distant vision, normally wears corrective glasses. But he loses them while traveling. Fortunately, he has his old pair as a spare.
QA: If the lenses of the old pair have a power of +2.25 dioptersdiopters , what is his near point (measured from his eye) when he is wearing the old glasses if they rest 2.00 cmcm in front of his eye?
QB: What would his near point be if his old glasses were contact lenses instead?
I got the answers
a) 29.63 cm
b) 27.63 cm
however they came out wrong.
A person struggles to read by holding a book at arm's length, a distance of 44 cm away.
What power of reading glasses should be prescribed for her, assuming they will be placed 2.1 cm from the eye and she wants to read at the "normal" near point of 25 cm?
Chapter 32 Solutions
Physics for Scientists and Engineers
Ch. 32 - Prob. 1PCh. 32 - Prob. 2PCh. 32 - Prob. 3PCh. 32 - Prob. 4PCh. 32 - Prob. 5PCh. 32 - Prob. 6PCh. 32 - Prob. 7PCh. 32 - Prob. 8PCh. 32 - Prob. 9PCh. 32 - Prob. 10P
Ch. 32 - Prob. 11PCh. 32 - Prob. 12PCh. 32 - Prob. 13PCh. 32 - Prob. 14PCh. 32 - Prob. 15PCh. 32 - Prob. 16PCh. 32 - Prob. 17PCh. 32 - Prob. 18PCh. 32 - Prob. 19PCh. 32 - Prob. 20PCh. 32 - Prob. 21PCh. 32 - Prob. 22PCh. 32 - Prob. 23PCh. 32 - Prob. 24PCh. 32 - Prob. 25PCh. 32 - Prob. 26PCh. 32 - Prob. 27PCh. 32 - Prob. 28PCh. 32 - Prob. 29PCh. 32 - Prob. 30PCh. 32 - Prob. 31PCh. 32 - Prob. 32PCh. 32 - Prob. 33PCh. 32 - Prob. 34PCh. 32 - Prob. 35PCh. 32 - Prob. 36PCh. 32 - Prob. 37PCh. 32 - Prob. 38PCh. 32 - Prob. 39PCh. 32 - Prob. 40PCh. 32 - Prob. 41PCh. 32 - Prob. 42PCh. 32 - Prob. 43PCh. 32 - Prob. 44PCh. 32 - Prob. 45PCh. 32 - Prob. 46PCh. 32 - Prob. 47PCh. 32 - Prob. 48PCh. 32 - Prob. 49PCh. 32 - Prob. 50PCh. 32 - Prob. 51PCh. 32 - Prob. 54PCh. 32 - Prob. 55PCh. 32 - Prob. 56PCh. 32 - Prob. 57PCh. 32 - Prob. 58PCh. 32 - Prob. 59PCh. 32 - Prob. 60PCh. 32 - Prob. 61PCh. 32 - Prob. 62PCh. 32 - Prob. 63PCh. 32 - Prob. 64PCh. 32 - Prob. 65PCh. 32 - Prob. 66PCh. 32 - Prob. 67PCh. 32 - Prob. 68PCh. 32 - Prob. 69PCh. 32 - Prob. 70PCh. 32 - Prob. 71PCh. 32 - Prob. 72PCh. 32 - Prob. 73PCh. 32 - Prob. 74PCh. 32 - Prob. 75PCh. 32 - Prob. 76PCh. 32 - Prob. 77PCh. 32 - Prob. 78PCh. 32 - Prob. 79PCh. 32 - Prob. 80PCh. 32 - Prob. 81PCh. 32 - Prob. 82PCh. 32 - Prob. 83PCh. 32 - Prob. 84PCh. 32 - Prob. 85PCh. 32 - Prob. 86PCh. 32 - Prob. 87PCh. 32 - Prob. 88PCh. 32 - Prob. 89PCh. 32 - Prob. 90PCh. 32 - Prob. 91PCh. 32 - Prob. 92PCh. 32 - Prob. 93PCh. 32 - Prob. 94PCh. 32 - Prob. 95PCh. 32 - Prob. 96PCh. 32 - Prob. 97PCh. 32 - Prob. 98PCh. 32 - Prob. 99PCh. 32 - Prob. 100PCh. 32 - Prob. 101PCh. 32 - Prob. 102PCh. 32 - Prob. 103PCh. 32 - Prob. 104PCh. 32 - Prob. 105PCh. 32 - Prob. 106PCh. 32 - Prob. 107P
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- A typical human lens has an index of refraction of 1.430. The lens has a double convex shape, but its curvature can be varied by the ciliary muscles acting around its rim. At minimum power, the radius of the front of the lens is 10.0 mm, whereas that of the back is 6.00 mm. At maximum power, the radii are 6.50 mm and 5.50 mm, respectively. If the lens were in air, what would be the maximum power and associated focal length of the lens? max power = ? diopters focal length = ? m What would be the minimum power and associated focal length of the lens? min power = ? diopters focal length = ? m At maximum power, how far behind the lens would the lens form an image of an object 11.5 cm in front of the front surface of the lens? image distance behind lens = ? marrow_forwardA myopic man has a far point of 160 cm. What power contact lens in D (when on the eye) will correct his distant vision?arrow_forwardA myopic person sees that their glasses prescription is -3.25D. What is their far point? (Assume the glasses are 1.75cm from their eyes, and that the eye's lens-retina distance is 2.0cm)arrow_forward
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