Question

Figure 10.24 (a) shows a thin liquid film supporting a small weight = 4.5 × 10–2 N. What is the weight supported by a film of the same liquid at the same temperature in Fig. (b) and (c)? Explain your answer physically.

Answer 1

liquid is same so, temperature is same and length of the film supporting the weight is also same , hence, in figure (b) and (c) the film will support same weight
I mean 4.5 × 10^-2 N