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11/24/2020 10:19 PM lecture22
11/24/2020 8:45 PM lecture_22a_thin_lenses
11/24/2020 2:54 PM lecture_22a_thin_lenses
11/24/2020 9:21 PM lecture_22b_corrective_lenses
11/24/2020 3:13 PM lecture_22b_corrective_lenses
11/24/2020 10:10 PM lecture_22c_lens_making_spherical_surfaces
11/24/2020 3:23 PM lecture_22c_lens_making_spherical_surfaces