Q. If electron, hydrogen, helium and neon nuclei are all moving with the velocity of light, then the wavelength associated with these particles are in the order
A. Electron > hydrogen > helium > neon
B. Electron > helium > hydrogen > neon
C. Electron < hydrogen < helium < neon
D. Neon < hydrogen < helium < electron
Answer: Electron > hydrogen > helium > neon
