alleryThe force a liquid exerts on a submerged surface is always:
APerpendicular
BParallel one
CSlanting one
DTangential
Answer & Solution
Correct answer: A. Perpendicular
1. A fluid at rest cannot sustain a force along a surface.
2. Only a force at right angles to it can be supported.
3. So the force is normal, or perpendicular, to the surface.
_Source: syllabus Physics Part II, Chapter 10, Mechanical Properties of Fluids._
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