A wire ring of diameter `14cm` is gently lowered on to a liquid surface and then pulled up. When the film just breaks, the force required is `0.0616N`. The surface tension of the liquid is

Surface tension is the property of a liquid by virtue of which free surface of liquid at rest tries to have minimum surface area. In doing so, the free surface of liquid at rest behaves as if it is covered with a stretched membrane. Surface tension (S) of a liquid is measured by from (F) acting on unit length fo a line (l) imagined to be drawn tangentially anywhere on the free surface i.e., S = (F)/(l). S is measured in N m^(-1) Read the above passage and answer the following question : (i)What is the cause of surface tension ? (ii) A wire ring of 30 mm diameter resting flat on the surface of a liquid is raised. The pull required is 1.5 gf more before the film breaks then it is after. What is surface tension of the liquid ? (iii) What are the implication of this phenomenon in day to day life ?

A wire ring of diameter 0.03m is dipped in a liquid and pulled out gently. If a force of 0.1N is required to break the film, then what is the surface tension of the liquid?

A thin wire ring of 3 cm radius float on the surface of liquid. The pull required to raise the ring before the film breaks is 30.14xx10^(3)N more than its weight. The surface tension of the liquid (in Nm^(-1)) is

A wire ring of 3cm redius is rested on the surface of a liquid and then reaised. The pull required is 3.03 g more before the film breaks than it is afterwards. Find the surface tension of the liquid.

A 10 cm long wire is placed horizontally on the surface of a liquid and is gently pulled up with a force of 2xx10^(-2) N to keep the wire in equilibrium . The surface tension of the liquid in Nm^(-1) is

A horizontal circular loop of wire has radius 0.04 m. It is lowered into a liquid and a film is formed . The force due to the surface tension of the liquid is 0.033 N. Calculate the surface tension of the liquid.

A liquid drop of diameter D breaks up into 27 tiny drops. Find the resulting change in energy. Take surface tension of the liquid as sigma