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?

A person decides to use an old pair of eyeglasses to make some optical instruments. He knows that the near point in his left eye is 58.0 cm and the near point in his right eye is 106 cm. (a) What is the maximum angular magnification he can produce in a telescope? (b) If he places the lenses 10.0 cm apart, what is the maximum overall magnification he can produce in a microscope? Hint: Go back to basics and use the thin-lens equation to solve part (b).

ASAP

A patient cannot clearly see any object that lies closer than 32.0 cm to her right eye. However, the patient wishes to see objects as close as 20.0 cm with that eye. The patient requests eyeglasses to address the problem. (a) Is the patient nearsighted or farsighted? nearsightedfarsighted     (b) If the eyeglass lens lies 2.10 cm in front of the patient's eye, what is the minimum distance p (in cm) separating the lens from an object she wants to see? (Give your answer to at least three significant digits.)   cm (c) The patient is unable to focus clearly on anything closer than 32.0 cm to her eye (this being the patient's near point). The image formed by the eyeglass lens must therefore be 32.0 cm from the eye. How far, then, (in cm) would the image lie from the lens? (Give your answer to at least three significant digits.)   cm (d) The image lies on the same side of the lens as the original object. Is the image real or virtual, and is its position q positive or…