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Suppose the earth was covered by an ocea...

Suppose the earth was covered by an ocean of uniform depth `h,(hltltR)` Let `sigma` be density of ocean and `p` be mean density of earth. Let `Deltag` be the approximate difference of value of net acceleration duet to gravity between the bottom of the ocean and top `(Deltag=g+("top")-g_("bottom"))`. Choose the correct option.

A

`Deltag=(4)/(3)piGh[2rho-3sigma]`

B

`Deltag=(4)/(3)Gpih[3sigma-2rho]`

C

`Deltag=(4)/(3)Gpih[2sigma-3rho]`

D

`Deltag=(4)/(3)Gpih[3rho-3sigma]`

Text Solution

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The correct Answer is:
B
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