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Question
A plate 0.025 mm distant from a fixed plate moves at 60 cm/s and requires a force of 0.2 kgf/m2 to maintain this speed. The dynamic viscosity of the fluid between the plates will be nearly
A.
9.2 × 10–10 kgfs/cm2
B.
8.3 × 10–10 kgfs/cm2
C.
7.4 × 10–10 kgfs/cm2
D.
6.5 × 10–10 kgfs/cm2
Answer ( Option B)

8.3 × 10–10 kgfs/cm2

Solution

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