Q
For the Stoke’s law to be valid in the case of a falling sphere in a fluid, the_____________________?
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A
A. Reynolds number (based on sphere diameter) should be < 1
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B
B. Flow around the sphere should be in turbulent region
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C
C. Sphere must be metallic
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D
D. Fluid density should be constant
Correct Answer:
C. C. Sphere must be metallic
