Question

Velocity of blue light is greater than green light.Why?

Answer 1

Answer:

Shorter waves vibrate at higher frequencies and have higher energies. Red light has a frequency around 430 terahertz, while blue's frequency is closer to 750 terahertz. Red photons of light carry about 1.8 electron volts (eV) of energy, while each blue photon

Answer 2

Answer:

speed of any light wave is dependent on its frequency.

so, possibly frequency of blue light is higher than green.