The magnitudes of the radii of curvature are 30.5 cm and 44.2 cm for the two faces of a biconcave lens. the glass has index of refraction 1.53 for violet light and 1.51 for red light. (a) for a very distant object, locate the image formed by violet light. (give your answer to two decimal places. indicate the position of the image relative to the lens with the sign of your answer.) (b) for a very distant object, locate the image formed by red light. (give your answer to two decimal places. indicate the position of the image relative to the lens with the sign of your answer.)

Acommon technique in analysis of scientific data is normalization. the purpose of normalizing data is to eliminate irrelevant constants that can obscure the salient features of the data. the goal of this experiment is to test the hypothesis that the flux of light decreases as the square of the distance from the source. in this case, the absolute value of the voltage measured by the photometer is irrelevant; only the relative value conveys useful information. suppose that in part 2.2.2 of the experiment, students obtain a signal value of 162 mv at a distance of 4 cm and a value of 86 mv at a distance of 5.7 cm. normalize the students' data to the value obtained at 4 cm. (divide the signal value by 162.) then calculate the theoretically expected (normalized) value at 5.7 cm.