Sorry for another dumb question. Thank you in advance. What factors effect the frequency of sound and light waves. Light waves are effected by electromagnetic energy and given by (f=E/h) right? What about sound waves? Also, to make sure, even though ultraviolet light has much more energy infrared light and hence a proportionally greater frequency and lower wavelength, they both travel at 3*10^8 in air. All light travels at 3*10^8 in air, right?