1. {-11 Points] What is the power of the eye in D when viewing an object 61.0 cm away? (Assume the lens-toretina distance is 2.00 cm.) OSCOLPHYSZO16 26.1.P.001. D Additional Materials lIl Reading ASK YOUR TEACHER PRACTICE ANOTHER 2. [0.511 Points] PREVIOUS ANSWERS OSCOLPHY52016 26.1.P.003. ASK YOUR TEACHER PRACTICE ANOTHER (a) The print in many books averages 3.80 mm in height. How high in mm is the image of the print on the retina when the book is held 33.5 cm from the eye? (Assume the lens-to-retina distance is (b) 2.00 cm. Include the sign of the value in your answer.) :lmm interconnections and higher order image processing.) O The size of the rods and the cones is smaller than the image height so we cannot distinguish letters on a page. The size of the rods and the cones is smaller than the image height so we can distinguish letters on a page. 0 The size of the rods and the cones is larger than the image height so we can distinguish letters on a page. O The size of the rods and the cones compared to the image height does not determine whether the letters are distinguishable. V Compare the size of the print to the sizes of rods and cones in the fovea and discuss the possible details observable in the letters. (The eye-brain system can perform better because of 3. [I1 Points] DETAILS OSCOLPHYSZO16 26.2.P.006. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER What is the far point in m of a person whose eyes have a relaxed power of 52.0 D? (Assume a lens-to-retina distance of 2.00 cm.) m Additional Materials ID Reading 4. [-/1 Points] DETAILS OSCOLPHYSZO16 26.2.P.007. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER What is the near point in cm of a person whose eyes have an accommodated power of 54.0 D? (Assume a lens-to-retina distance of 2.00 cm.) cm Additional Materials El Reading 5. [-/1 Points] DETAILS OSCOLPHYSZO16 26.2.P.009. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER In a LASIK vision correction, the power of a patient's eye is increased by 2.53 D. Assuming this produces normal close vision, what was the patient's near point in m before the procedure? (The power for normal close vision is 54.0 D, and the lensto-retina distance is 2.00 cm.) m 6. [-/1 Points] DETAILS OSCOLPHYS2016 26.4.P.026. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A microscope with an overall magnification of 790 has an objective that magnifies by 170. (a) What is the magnification of the eyepiece in multiples? (b) If there are two other objectives that can be used, having magnifications of 100 and 400, what other total magnifications are possible? objective = 100x X objective = 400x Additional Materials Reading 7. [-/1 Points] DETAILS OSCOLPHYS2016 26.4.P.028. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) Where does an object need to be placed relative to a microscope in cm from the objective lens for its 0.750 cm focal length objective to produce a magnification of -50? (Give your answer to at least three decimal places.) cm (b) Where should the 5.00 cm focal length eyepiece be placed in cm behind the objective lens to produce a further fourfold (4.00) magnification? cm8. [-I1 Points] DETAILS OSCOLPHYSZO16 26.4.P.030. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An amoeba is 0.308 cm away from the 0.303 cm focal length objective lens of a microscope. (See the image. Due to the nature of this problem, do not use rounded intermediate values in your calculationsincluding answers submitted in WebAssign.) 9. [-/1 Points] DETAILS OSCOLPHYS2016 26.5.P.033. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER What is the angular magnification in multiples of a telescope that has a 140 cm focal length objective and a 2.75 cm focal length eyepiece? Additional Materials Reading 10. [-/1 Points] DETAILS OSCOLPHYS2016 26.5.P.035. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A large reflecting telescope has an objective mirror with a 12.5 m radius of curvature. What angular magnification in multiples does it produce when a 3.15 m focal length eyepiece is used?11. [-/1 Points] DETAILS OSCOLPHYS2016 26.5.WA.040.TUTORIAL. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The telescope at a small observatory has objective and eyepiece focal lengths respectively of 19.0 m and 12 cm. If this telescope is used to view a 1300 m diameter lunar crater on the surface of the moon 3.77 x 10 m from the surface of the Earth, determine the following. (a) angular magnification of the telescope (b) size of the first image m (c) length of the barrel of the telescope m (d) angle subtended at the unaided eye by the lunar crater rad (e) angle subtended at the eye when the lunar crater is viewed through the telescope rad12. [-I1 Points] OSCOLPHYSZO1626.6.P.039. ASK YOUR TEACHER PRACTICE ANOTHER (a) During laser vision correction, a brief burst of 193 nm ultraviolet light is projected onto the cornea of the patient. It makes a spot 1.40 mm in diameter and deposits 0.330 m] of energy. Calculate the depth (in pm) of the layer ablated, assuming the corneal tissue has the same properties as water and is initially at 34.0C. The tissue's temperature is increased to 100C and evaporated without further temperature increase. (The heat capacity of water is 4,186 J/(kg . C), its latent heat of vaporization is 2,256 kJ/kg, and its density is 1,000 kg/m3.) um (b) Does your answer imply that the shape of the cornea can be nely controlled? 0 Yes ONo Additional Materials El Reading 13. [-/1 Points] OSCOLPHYSZO1626.6.XP.002. ASK YOUR TEACHER PRACTICE ANOTHER The lens-to-retina distance of a woman is 2.00 cm, and the relaxed power of her eye is 52.0 D. (a) What is her far point in m? m (b) What eyeglass power in D will allow her to see distant objects clearly, if her glasses are 1.80 cm from her eyes? d