I'm aware that photons carry momentum while technically having no mass. However I recently saw a video of a laser used to propel a small silvered object up several meters in the air just using the momentum of the light. So what about the reaction force? As the light is coming out of the laser is there an opposite force on the laser? If you had a powerful enough laser could you feel it pushing back like water coming out of a hose? And if so does classical physics explain this process or is light based momentum on objects in the realm of quantum?