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In: Physics

1) A woman can read the large print in a newspaper only when it is at...

1) A woman can read the large print in a newspaper only when it is at a distance of 69 cm or more from her eyes. (a) Is she nearsighted (myopic) or farsighted (hyperopic), and what kind of lens is used in her glasses to correct her eyesight? (b) What should be the refractive power (in diopters) of her glasses (worn 2.9 cm from the eyes), so she can read the newspaper at a distance of 22 cmfrom the eyes?
a)

b)

2) The refractive indices of materials A and B have a ratio of nA/nB = 1.50. The speed of light in material A is 1.33 × 108 m/s. What is the speed of light in material B?

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