CBSE Class 9 Answered

Dear student, 

 

In a bottle full of liquid fitted with a tight cork, we can assume that the cork is touching the liquid. A slight blow on such a cork, would lead to the transfer of momentum and hence force to the liquid which in turn would try to move because of the force transferred. But, since the bottle is completely filled and there is no space for the liquid to move, it will exert this force on the walls of the bottle. As a result, if the force is too large, it might lead to the breakage of the bottle.