6. The excitation and fluorescence spectra of the dye Rhodamine 6G (R6G) are shown below. The red curve has been scaled so it is the same maximum height as the blue curve. 120 100 Intensity (Arbitrary Units) 40 8 525 nm 547 nm 505 nm 20 420 nm 500 nm ↓ 585 nm 695 nm + 0 400 450 500 550 600 650 700 Wavelength (nm) (a) What instrument could be used to record the blue spectrum? (b) What instrument could be used to record the red spectrum? (c) In order to record the fluorescence spectrum of this molecule, would you fix the excitation or emission monochromator, and at what wavelength? (d) In order to record the fluorescence spectrum of this molecule, would you scan the excitation or emission monochromator, and over what wavelength range? (e) In order to record the excitation/absorption spectrum of this molecule, would you fix the excitation or emission monochromator, and at what wavelength? (f) In order to record the excitation/absorption spectrum of this molecule, would you scan the excitation or emission monochromator, and over what wavelength range?