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The plate area 10sq.cm is separated from another plate by a 1mm thick layer of glycerine. If the coefficient of viscosity is 20 poise then the force required to move the upper plate with a velocity of 1cm/sec. Over the lower one is

Yamini , 5 Years ago
Grade 12th pass
anser 1 Answers
Arun

Last Activity: 5 Years ago

F = η A dv/dx
= 20 * 20 * 2 /(0.2m)
= 4000 dyne
 
Hope it helps
 
In case of any difficulty, please feel free to ask.
 
Regards
Arun (askIITians forum expert)

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