According to Newton, the viscous force acting between liquid layers of area A and velocity gradient Δv / Δz is given by F=−ηadv/dvz, where η is constant called According to Newton the viscous force acting between liquid layers of area A and velocity gradient Δv / Δz is given by F=−ηadv/dvz where η is constant called August 23, 2020 Category: Chapter 1 - Units and Dimensions , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related