ABO sample Questions & Answers ( 100% correct)

When light is refraction by a prism it is: a. Bent toward the apex b, Bent toward the base c. Not bent d. Reflected correct answersB. Bent toward the base A prism always bends light toward its base. Prisms: I. Always bend light toward the base II. Always bend light toward the apex III. Cause chromatic Dispersion IV. Move the image toward the apex V. Are sometimes prescribed for muscle problems correct answersI. Always bend light toward base III. Cause chromatic dispersion. IV. Move the image toward the apex. V. are sometimes prescribed for muscle problems Plus lenses are: I. are thicker in the center than at the edges II. Are used to correct myopia III. Are used by all presbyopes IV. Must be surfaced individually in the laboratory correct answersI. Are thicker in the center than at the edges.