Physics, 02.11.2019 06:31 lalalaaldgydyhg8823
Now assuming anna's far point was found to be 0.9 m (i. e., her eyes can't focus on any object more than 0.9 m away), what power corrective lenses would you prescribe to hannah so that, when wearing these lenses, her visual range was the same as anna's (from a near point of 20 cm to a far point of infinity? give your answer in units of diopters, to the nearest tenth of a diopter, with the correct sign.
5. one treatment of cataracts is to surgically remove the variable lens of the eye. if we assume that the cornea's refractive power focuses objects at infinite distances onto the retina of a person who has had this surgery, what power correcting lenses would they need to be able to read text at a 21-cm near-point distance? again, give your answer in units of diopters, to the nearest tenth of a diopter and with the correct sign.
Answers: 2
Physics, 21.06.2019 22:30
Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.
Answers: 1
Physics, 22.06.2019 14:40
Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion
Answers: 2
Physics, 22.06.2019 16:10
Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)
Answers: 1
Now assuming anna's far point was found to be 0.9 m (i. e., her eyes can't focus on any object more...
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