Bottom of a 300ml Thumps Up bottle is ______.
Circular
Rectangular
Triangular
Square
The structure of BF3 is
The diameter of neck and bottom of a bottle are 2cm and 10 cm respectively . The bottle is completely filled with oil . If the cork in the neck is pressed in with a force of 1.2kgf,what force is exerted on the bottom of the bottle?