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The mean free path of the particles of a gas at a temperature T0 and pressure p0 has a value λ0. If the pressure is increased to 1.5 p0 and the temperature is reduced to 0.75 T0, the mean free path

The mean free path of the particles of a gas at a temperature T0 and pressure p0 has a value λ0. If the pressure is increased to 1.5 p0 and the temperature is reduced to 0.75 T0, the mean free path Correct Answer is reduced to half

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A university library budget committee must reduce exactly five of eight areas of expenditure - I, J, K. L, M, N, O and P - in accordance with the following conditions: If both I and O are reduced, P is also reduced. If L is reduced, neither N nor O is reduced. If M is reduced, J is not reduced. Of the three areas J, K and N exactly two are reduced. If both K and N are reduced, which one of the following is a pair of areas neither of which could be reduced?
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If L is reduced, neither N nor O is reduced.
If M is reduced, J is not reduced.
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