According to Rankine's formula, minimum depth of foundations, is Options: A . &nbsp`p/w` x `((1 + sin varphi)/(1 - sin varphi))^2` B . &nbsp`p/w` x `((1 - sin varphi)/(1 + sin varphi))^2` C . &nbsp`(p)/(2w)` x `((1- sin varphi)/(1 + sin varphi))^2` D . &nbsp`p/w` x `((1 + sin varphi)/(1 - sin varphi))`

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Question

According to Rankine's formula, minimum depth of foundations, is

Options:

A . `p/w` x `((1 + sin varphi)/(1 - sin varphi))^2`

B . `p/w` x `((1 - sin varphi)/(1 + sin varphi))^2`

C . `(p)/(2w)` x `((1- sin varphi)/(1 + sin varphi))^2`

D . `p/w` x `((1 + sin varphi)/(1 - sin varphi))`

Answer: Option B

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