does gravity bend light?

gravity affects thing with masses

opbviously it effects the light

Yes it does it is called gravitational lensing 

in a star when its out of fusable hydrogen it starts collapsing under its own gravity and light bends from the internal gravity.

When it reaches a critical radius and has a huge mass all the light is bent inward and thus cant escape this is called a black hole. Light cant escape so nothing else can and hence we can say anything with a huge mass and strong gravitational field can bend light.

light is emitted and absorbed in tiny "packets" called PHOTONS which has negligible mass. As we know that any material with mass is effected by gravity, light too has some effect of gravity on it. But as its mass is negligible, the effect too is negligible.

YES GRAVITY CAN BAND LIGHT

e.g. GRAVITY OF BACK HOLE IS VERY STRONG

Imagine a big sheet. If you place a large object on it, it will bend. Imagine that the sheet is the space-time continuum, and the large object is a star. If, with our sheet model, you try to roll a marble past the object, it will at least curve its path, if not fall into the large object. The same applies to any object in space, even the photons of light. As they go past a star or other large object, they bend. I hope this helped.