People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or goggles and there is water in contact with their eyes. in a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cmfrom the retina.
with the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.78cm in front of the eye.)
Answers: 3
Physics, 22.06.2019 01:20
Un jugador de beisbol batea un foul recto en el aire.la pelota deja el bate con una rapidez de 120 km/h. en ausencia de resistencia del aire. ? cual sera la rapidez de la pelota cuando la atrape el catcher
Answers: 1
Physics, 22.06.2019 05:30
A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?
Answers: 3
Physics, 22.06.2019 07:30
The slope of a velocity time graph over any interval of time gives the during that interval
Answers: 1
Physics, 22.06.2019 12:00
Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value
Answers: 1
People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or g...
Mathematics, 12.11.2019 21:31
Mathematics, 12.11.2019 21:31
Mathematics, 12.11.2019 21:31
Mathematics, 12.11.2019 21:31
Biology, 12.11.2019 21:31
Biology, 12.11.2019 21:31
History, 12.11.2019 21:31
Mathematics, 12.11.2019 21:31
Mathematics, 12.11.2019 21:31
Physics, 12.11.2019 21:31
Biology, 12.11.2019 21:31
History, 12.11.2019 21:31
Mathematics, 12.11.2019 22:31
History, 12.11.2019 22:31
English, 12.11.2019 22:31