Coefficient of earth pressure at rest is given by

1.	Coefficient of earth pressure at rest is given by
A.	k0 = 1 – sin ϕ /1 + sin ϕ
B.	k0 = 1 – sin ϕ
C.	k0 = 1 + sin ϕ /1 – sin ϕ
D.	k0 = 1 + sin ϕ
Answer» C. k0 = 1 + sin ϕ /1 – sin ϕ

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Coefficient of earth pressure at rest is given by

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