When an empty bottle is closed air tight and pushed inside water it bounces back when it is released. This is because ________.
1
water does not exert force on an empty bottle
2
gravitational force on a bottle is equal to the buoyant force of the water
3
upthrust of water on a bottle is greater than the gravitational force acting on the bottle
4
gravitational force acting on the bottle is greater than the upthrust of water