how can light have property's and still not have mass?

Answer 1

Light is a very odd thing to try and understand. It behaves as a wave and as a stream of particles...we call this a dual nature. You just have to accept it, really. Light is like nothing else for it has no mass and behaves in two different ways.

Answer 2

Light is quantized, The smallest quantum is a photon. Photons do not have mass. They have energy and momentum. Its confusing that how can a particle have momentum but no mass? It is accepted by quantum physics by experiments.

Answer 3

well light exists so it has property but you cant waigh the light its not an object so it dont have a mass