Home
Class 11
PHYSICS
A small piece of wire 4cm long, is float...

A small piece of wire 4cm long, is floating on surface of water. If a force of 560 dynes in excess of its weight is required to pull it up from the surface, find the surface tension of water.

Text Solution

AI Generated Solution

To find the surface tension of water given the problem, we can follow these steps: ### Step 1: Identify the given values - Length of the wire (L) = 4 cm = 0.04 m - Force required to pull the wire up (F) = 560 dynes ### Step 2: Convert the force from dynes to Newtons 1 dyne = \(10^{-5}\) Newtons, so: ...
Promotional Banner

Similar Questions

Explore conceptually related problems

The length of needle foating on the surface of water is 1.5 cm the force in addition to its weight required to lift the needle from water surface will be (surface tension of water =7.5N//cm )

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)

Larva of 'Culex' floats on surface of water with its head

Find the excess pressure inside a liquid drop of radius 2 cm, if the surface tension of water is 0.073 N m^(-1)

A square wire frame of side / is floating on the surface of liquid of surface tension T. The force required to pull out the frame from the liquid is

Water is kept in a beaker of radius 5.0 cm. Consider a diameter of the beaker on the surface of the water. Find the force by which the surface on one side of the diameter pulls the surface on the other side. Surface tension of water =0.075Nm^-1 .

The length of a needle floating on water is 2.5 cm . The minimum force in addition to its weight needed to lift the needle above the surface of water will be (surface tension of water is 0.072 N//m )

Calculate the force required to take away a flat circular plate of radius 0.02m from the surface of water. The surface tension of water is 0.07 Nm^(-1)

A wire 0.1m long is placed horizontally on the surface of water and is gently pulled up with a force of 1.456 xx 10^(-2) N to keep the wire in equilibrium. Calculate the surface tension of water.

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)