Light, is it a wave or particle?

So whats light a wave or a particle?

Modern theory is particle-wave duality. Basically it has properties of both. It has frequency and wavelength just like a wave, but its made up of particles called photons.

I think its a wave... I used to be a science geek... used to.

 
If I've learned right from the TV science programs, I believe it has the properties of both.

Both.

YEA what HE SAID BOTH
IT CAN BE BOTH
http://www.play-hookey.com/optics/light_as_particle.html

It's a particle.

light has the properties of wave and particle.
isn't anyone familiar with einstein, planck, compton and de broglie?

I BELIVE THERE BOTH...ITS A WAVE OF PARTICLES THAT COME FROM THE SUN THATS JUST IN SIMPLE WORDS I REALLY DON'T KNOW HOW TO EXPLAIN IT

Light is electromagnetic energy, which travels in waves. however, it also has Mass, which gives it the characteristics of a partical.

This question may not be answered in our lifetime, but one of the current theories is that light is its own entity (photon).

long drawn out physics discussion ensues, so I'll cut myself short :P

it depends on its velocity.