Find the angular magnification obtained with a micro- scope, using an objective with an angular magnification of 50 and an ocular with an angular

Use the worked example above to help you solve this problem. The near point of a patients eye is 50.0 cm. (a) What focal length must a corrective lens have to enable the eye to see clearly an object 28.5 cm away? Neglect the eye-lens distance. 50 x cm (b) What is the power of this lens? 2 diopters (c) Repeat part (b), taking into account the fact that, for typical eyeglasses, the corrective lens is 2.00 cm in front of the eye. 2.26 X diopters

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Problem 12:  A student wears eyeglasses of power P = -3.75 diopter to correct nearsightedness. The glasses are designed to be worn d = 1.3 cm in front of the eye. Part (a)  Input an expression for the far point the student can see without correction, do. Part (b)  Numerically, what is the distance in meters?

A person with a range of vision from 56 cm to ∞ uses a 18 cm focal length magnifier. (a) Find the angular magnification when the magnifier is used with the eye relaxed. (b) Find the angular magnification when the magnifier is used with the eye focused at its near point.

During LASIK eye surgery (laser - assisted in situ keratomileusis), the shape of the cornea is modified by vaporizing some of its material. If the surgery is performed to correct for nearsightedness, how does the cornea need to be reshaped?

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If you want to examine the fine detail of an object with a magnifying glass with a power of +20.0 diopters, where should the object be placed so as to observe a magnified image of the object?