A sphere of specific gravity 7.8 is ropper into oil of specific gravity of .88 and viscoisty mu = 0.15 Pa-s. Esitmate the terminal velocity of the spehere if its dimaeter is (a) = 0.1 mm, (b) = 1.0 mm, and (c) = 10.0 mm.

Which of the following is the most important advantage of a large field of view? a. allows larger areas to be examined b. relieves eyestrain c. minimizes parallax errors. d. increases precision in proportion to the in- crease in field of view