A metal plate 5cm 5cm rest on a layer of castor oil 1mm thick whose co – McqOptions

MCQOPTIONS

1.	A metal plate 5cm 5cm rest on a layer of castor oil 1mm thick whose coefficient of viscosity is 1.55Nsm^(-2). Find the horizontal force required to move the plate with a speed of 2 cms^(-1).
A.	0.775N
B.	0.0577N
C.	0.0775N
D.	0.577N
Answer» D. 0.577N

Discussion

No Comment Found

Related MCQs

A body of mass 15kg is dropped into the water. If the apparent weight of the body is 107N, then the applied thrust will be ___________
Assertion: Smaller drops of liquid resist deforming forces better than the larger drops.<br>Reason: Excess pressure inside a drop is directly proportional to its surface area.
The velocity of efflux of a liquid through an orifice in the bottom of the tank does not depend upon ___________
The rate of flow of liquid through an orifice of a tank does not depend upon ___________
An aeroplane gets its upward lift due to a phenomenon described by the ___________
A steel ball is dropped in oil, then ___________
Critical velocity of the liquid ___________
Motion of a liquid in a tube is best described by ___________
It is easier to swim in sea water than in river water.
At what speed will the velocity head of stream of water be 40 cm?