Two stretched membranes of area 2 cm2 and 3 cm2 are placed in a liquid at the same depth. The ratio of pressures on them is:
Correct answer: A. 1 : 1
- A. 1 : 1
- B. 2 : 3
- C. 3 : 2
- D. 22 : 32
Explanation
This is the correct answer. According to Pascal's law, when two stretched membranes are placed at the same depth in a liquid, the pressure on them is determined by the depth and the density of the liquid, but it's not influenced by the areas of the membranes. Therefore, the ratio of the pressures on the two membranes is 1:1, meaning they experience the same pressure. Pressure is independent of area of cross section.
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