A thin liquid film formed between a U-shaped wire and a light slider supports a weight of 1.5 × 10^{-2} N (see figure). The length of the slider is 30 {\cm} and its weight negligible. The surface tension of the liquid film is

Question

A thin liquid film formed between a U-shaped wire and a light slider supports a weight of 1.5 × 10^{-2} N (see figure). The length of the slider is 30  {\cm} and its weight negligible. The surface tension of the liquid film is

Examsnet · Accepted Answer

Correct Answer is : 0.025Nm−1

AIEEE 2012 Solved Paper