The volume of a spherical body is decreased by10–3 % when it is subjected to pressure of 40 atmospheres. Find the bulk modulus of body.
(1 Atmosphere pressure =1.01x105 N/m2).
Volume of a spherical body decreased = 10-3 %
Pressure, P = 40 atm
Percentage change in volume is given by 10-3 %
is the bulk modulus of the body.
Adhesive force is the attractive force between two unlike molecules. They are caused by forces acting between two substances like electrostatic force (attraction due to opposing charges), mechanical force etc.
E.g., Force of attraction between gum and paper.
Inter-atomic or inter-molecular forces are electrostatic in nature.