Stokes law hold for bodies of:
Correct answer: A. Spherical shape
- A. Spherical shape
- B. Oblong shape
- C. Rectangular shape
- D. Curve shape
Explanation
Stokes' Law holds true for bodies that have a spherical shape. It describes the motion of a small spherical particle through a viscous fluid. According to Stokes' Law, the drag force experienced by the particle is directly proportional to its velocity and the viscosity of the fluid, and inversely proportional to the radius of the particle. This law is particularly useful in understanding the behavior of particles in fluids, such as in sedimentation or the motion of droplets. It's fascinating how the shape of an object can influence its interaction with a fluid.
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About Fluid Drag
Fluid drag is the resistive force exerted by a liquid or gas on an object moving through it, and its value depends on speed, fluid density, shape and exposed area. Questions examine drag at low and high speeds, terminal velocity when drag balances weight, and the difference between drag and ordinary solid friction.
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