Kace

Why do we need to polish magnesium before using it in an experiment?

Violet light and red light travel through air and strike a block of plastic at the same angle of incidence. The angle of refraction is 30.700° for the violet light and 31.380° for the red light. The index of refraction for violet light in plastic is great...

so we need to get rid of it in order to have a reaction from pure magnesium?

ahh i see now thanks alot!