1.

Considering the pressure 'P' to be proportional to the density of air 'd', the pressure at height 'h' if the pressure on surface of earth is 'P_(0)' and density 'd_(0)', under isothermal conditions

Answer»

<P>`P_(0)E^(-(P_(0))/(d_(0))GH)`
`P_(0)e^(-(d_(0))/(P_(0))gh)`
`P_(0)e^((d_(0))/(P_(0))gh)`
`P_(0)e^((P_(0))/(d_(0))gh)`

ANSWER :B


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