Physics · Fluid Mechanics
A metal sphere of mass 'm' and density 'σ1' falls with terminal velocity through a container containing liquid of density 'σ2'. The viscous force acting on the sphere is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1mg ( 1 + σ2σ1 )
- 2mg ( 1 - σ1σ2 )
- 3mg ( 1 - σ2σ1 )✓
- 4mg ( 1 + σ1σ2 )
Correct answer
mg ( 1 - σ2σ1 )
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