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A metal block of base area 0.2 m^(2) is ...

A metal block of base area 0.2 `m^(2)` is connected to a 0.02 kg mass via a string that passes over an ideal pulley as shown in figure. A liquid film of thickness 0.6 mm is placed between the block and the table. When released the block moves to the right with a constant speed of 0.17 m/s. The co-efficient of viscosity of the liquid is

A

`3.45 xx 10^(3)` Pa.s

B

`3.45 xx 10^(-2)`Pa.s

C

`3.45 xx 10^(-3)` Pa.s

D

`3.45 xx 10^(2)` Pa.s

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