Yep, but it won't raise it much more than a couple percent. Try hanging some water-soaked towels around the room, and that'll work better. Surface area,(damp/wet) is what you're looking for, for best resilts.
here is what you do my man put the bucket of water but hang a towel above it so it is say one third in water it will wick up water and put more moisture in the air then your suggestion check it out for self
never be afraid to experiment you will always gain knowledge if nothing els you will learn what not to do
If you want to add humidity this way instead of adding a humidifier, i would suggest that you put the bowl at mid level under light so heat will give you more humidity but a fan would be good to move air around as well with it.