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The viscosity eta of a gas depends on th...

The viscosity `eta` of a gas depends on the long - range attractive part of the intermolecular force, which varies with molecular separation r according to `F=mur^(-n)` where n is a number and `mu` is a constant. If `eta` is a function of the mass m of the molecules, their mean speed v, and the constant `mu` than which of the following is correct-

A

`eta prop m^(n+1) v^(n+3)mu^(n-2)`

B

`eta prop m^((n+1)/(n-1))v^((n+2)/(n-1))mu^((-2)/(n-1))`

C

`eta prop m^(n)v^(-n)mu^(-2)`

D

`eta prop mv mu^(-n)`

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The correct Answer is:
B
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