Class 11 NEET Physics Physical World, Units and Measurements

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Question : 64 of 70
 
Marks: +1, -0
According to Newton, the viscous force acting between liquid layers of area A and velocity gradient Δv∕ΔZ is given by F=−ηA
Δv
ΔZ
,
where η is constant called coefficient of viscosity. The dimensional formula of η is
( 1990 )
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