Sketch a graph of the function y(x) = 2e function symmetric? what is the limit for x -> exponent? vs. x for c 5. indicate the x and y scales. is the too? what is the significance of c in the 5.) what is the relation between a photon's wavelength, ^, and frequency, f? roughly what wavelength does a radio wave for station 99.9 on the fm dial have (i. e., the frequency is 99.9 mhz)? atomic sizes are on the order of angstroms, ä, where 1å = 10-10m. what is the frequency of a photon of wavelength a = 0.1 a?