I need help with parts of this question. 6. The red light emitted from a Helium-Neon LASER has an energy of 3.15 x 10^-19 J. a. At what speed do "red photons travel? I need help with this one. B. calculate the wavelength of these photons. I got 6.31424 x 10^-7m. Is this correct. c. comment on the speeds of the photons from the LASER versus the X-ray photons. I need help with this one. I am trying to study for a quiz and really need help. Thanks.