A rectangular plate of dimension `6 cm xx 4cm` and thickness `2mm` is placed with its largest face flat on the surface of water. Find the downward force on the plate due to surface tension. Surface tension of water is `7.0 xx 10^(-2)Nm^(-1)`.

A rectangular plate of dimensions 6cm xx 4 cm and thickness 2 mm is placed with its largest face flat on surface of water . (i) What is the downward force on the plate due to surface tension ? Surface tension of water =7.0 xx10^(-2) "Nm"^(-1) (ii) If the plate is placed vertical so that the longest side just touches the water surface, find the downward force on the plate.

A rectangular glass plate of dimensions 5 cm xx 4 cm is placed flat on the surface of water. Find the downward force on the plate due to surface tension. Given surface tension of water = 0.073 N m^(-1)

A rectangular frame having dimensions "8 cm "xx " 4 cm " and width of 3 mm is initially placed with its largest face flat on water surface. Calculate the downward force acting on the frame due to surface tension of water ("Surface tension of water "= 7.2 xx 10^(-4)"Ncm"^(-1))

The length of a rubber cord floating on water is 5 cm. The force needed to pull the cord out of water is ….N (surface tension of water is 7.2xx10^(-4)Nm^(-1) ).

A circular plate of radius 4 cm and weight W is made to rest on the surface of water. If a minimum pull of W + F is required to clear the plate off the water surface then find F. Given surface tension of water S_(w) = 0.072 N m^(-1)

A 5.0 cm long straight piece of thread is kept on the surface of water. Find the force with which the surface on one side of the thread pulls it. Surface tension of water =0.076Nm^-1

The pressure inside an air bubble of radius 2 cm formed 20 cm below an open water surface is (Given surface tension of water = 70 xx 10^(-3) Nm^(-1) )

What is the difference in pressure between the inside and outside of a spherical drop of radius 2mm Surface tension of water =70 xx 10^(-3) "Nm"^(-1).

Find the surface energy of water kept in a cylindrical vessel of radius 6.0 cm. Surface tension of water =0.075Jm^-2 .