alleryA sphere less dense than the fluid it is in reaches a terminal velocity directed:
AVertically downwards
BHorizontally sideways
CIn a spiral path
DVertically upwards
Answer & Solution
Correct answer: D. Vertically upwards
When particle density is below fluid density the net force is buoyant, so it settles into a steady upward speed.
Keep practising Experimental Skills
Browse all Experimental Skills questions for NEET UG, or explore more Physics topics.
Related questions
Ball radius 1 mm, viscosity 1 Pa s, density excess 900 kg/m3, g = 10 m/s2. Terminal speed?Stokes' law explains why tiny cloud droplets stay in the air until they:What is the SI unit of dynamic viscosity used in Stokes' law?In a falling-sphere viscometer, the terminal speed is found by timing the ball between:In which year did George Gabriel Stokes derive his drag law?The CGS unit of kinematic viscosity, named after Stokes, is the:Why is Stokes terminal speed proportional to R squared?If a sphere's radius doubles, its terminal velocity in the same liquid becomes: