In a compound microscope, the objective and eyepiece have focal lengths of +1 .0 and 3.0 cm respectively. The real image 1 formed by the objective lens is 20 cm from the objective lens. Determine the total magnication if the eye is held close to the eyepiece and views the virtual image 2 at a distance of 30 cm. A farsighted person cannot see clearly objects closer to the eye than 50 cm. Determine the power of the spectacle lenses which will enable him to read type at a distance of 35 cm. Power is equal to the reciprocal of focal length. 0 A. 45 diopters O B. 70 diopters O C. 60 diopters O D. 50 diopters