Consider this... Range Figure 3 Emission spectra of incandescent (Weft) and fluorescent (right light bulbs 200 400 600 800 200 400 600 800 Wavelength (nm) Wavelength (nm) Key Questions 11. Over what wavelength range would each light bulb be a source of light for an absorption measurement? pla res cent, at point, ëëo.SSo, 6 10 n..^ 12. Describe how intensity changes as wavelength increases for each source. In other words, are the ntensities uniform? 13. At 525 nm, which is the better light source? State your evidence. n Candestent is rins Continuous light sources change smoothly from one wavelength to the next. On the other hand, line sources produce narrow bands or lines of intense radiation. 14. Describe how an incandescent light bulb can be a continuous source in the visible region of the 138