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1. [0.5/1 Points] PREVIOUS ANSWERS WAUNIPHYSAV1 34.P.005. If when an object is placed 10.5 cm in front of a mirror the image is located 24.0 cm behind the mirror, determine the following. ASK YOUR TEACHER PRACTICE ANOTHER (a) the focal length of the mirror -168 x What is the relationship between the focal length, image distance, and object distance for a spherical mirror? What is the sign associated with the image distance of an image behind the mirror? cm (In) if the mirror is concave or convex concave O convex Submlt Answer 2. [-I1 Points] WAUNIPHYSAV1 34.P.010. ASK YOUR TEACHER PRACTICE ANOTHER You borrow a friend's makeup mirror in order to get a small piece of sawdust out of your eye. You notice that when your eye is 24.0 cm from the mirror, the image is magnified by a factor of 6'40 and has the same orientation as your eye (i.e. it is not inverted relative to your eye). Determine the radius of curvature of the mirror. :lm 3. [-I1 Points] WAUNIPHYSAV1 34.P.013. :lcm (b) Where is the image formed? 0 to the left of the lens, on the same side as the object O to the right of the lens, on the side opposite to the object (c) Is the image real or virtual? 0 real 0 virtual 4. [I1 Points] WAUNIPHYSAV1 34.P.015. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) Find the distance of the image from a thin converging lens of focal length 10 cm if the object is placed 3 cm to the left of the lens. Include the correct sign. ASK YOUR TEACHER PRACTICE ANOTHER If a converging lens forms a real, inverted image 19.0 cm to the right of the lens when the object is placed 55.0 cm to the left of a lens, determine the focal length of the lens. : cm 5. [-/1 Points] WAUNIPHYSAV1 34.P.021. ASK YOUR TEACHER PRACTICE ANOTHER You have a converging (convex) lens and a diverging (concave) lens and the magnitude of the focal length of each lens is 32.0 cm. (a) Determine which lens you should use in order to produce an image of a light bulb on a screen several meters away. 0 converging O diverging (b) Determine how far from the lens you should locate the screen in order to produce an image of the light bulb that is magnied by a factor of 2.00. Em 6. [-/1 Points] WAUNIPHYSAV1 34.P.027. ASK YOUR TEACHER PRACI'ICE ANOTHER A severely myopic patient has a far point of 8.82 cm. By how many diopters should the power of his eye be reduced in laser vision correction to obtain normal distant vision for him? (Assume a lens-to-retina distance of 2.00 cm.) [:1D 7. [-l1 Points] WAUNIPHYSAV1 34.P.034. ASK YOUR TEACHER PRACTICE ANOTHER (a) If your relaxed eye has a refractive power of 470 D, and your lens-to-retina distance is 2.35 cm, determine if you are near or far sighted. O nearsighted O farsighted (b) If you are nearsighted, determine your far point. If you are farsighted, determine your near point. i:lcm 8. [-/1 Points] DETAILS WAUNIPHYSAV1 34.P.044. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A farsighted woman has a near point of 76.0 cm. What power eyeglasses held 2.04 cm from the eyes will allow her to see objects 25.0 cm away from the eyes? D 9. [-/1 Points] DETAILS WAUNIPHYSAV1 34.P.054. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER When you hold an insect at the near point of your eye it subtends an angle of 5.00 x 10- rad. Determine the angular size (magnitude only) of the insect when viewed through a microscope that has an angular magnification with a magnitude of 153. rad 10. [-/1 Points] DETAILS WAUNIPHYSAV1 34.P.057. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) Where does an object need to be placed relative to a microscope for its 0.454-cm focal length objective to produce a magnification of -75.0? (Give your answer to at least three decimal places.) cm from the objective lens (b) Where should the 5.00-cm focal length eyepiece be placed to produce a further fourfold (4.00) magnification? cm behind the objective lens 11. [-/1 Points] DETAILS WAUNIPHYSAV1 34.P.067. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER If a telescope has objective and eyepiece lenses with focal lengths respectively of 106 cm and 2.60 cm, determine the distance needed between these two lenses in order to produce a final image far from the observer (where vision is most relaxed) when viewing a very distant object. cm12. [I1 Points] WAUNIPHYSAV1 34.P.078. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER You have two lenses with focal lengths f1 = +27.0 cm and f2 = +64 cm that you can mount on either end of a telescope barrel with an adjustable length. Determine the following. (a) the lens you should use for the objective of the telescope 0 f1 0 r2 (b) the distance needed between the lenses in order for the telescope to focus on an innitely distant object and produce an infinitely distant image cm (b) the distance needed between the lenses in order for the telescope to focus on an object that is 6.00 m away and to produce an infinitely distant image :cm