स्थिरावस्था में मृदा दाब गुणांक (Coefficient of earth pressure at rest) को निम्नलिखित में से किस व्यंजक द्वारा व्यक्त किया जाता है? (जहाँ μ प्वासों अनुपात है)

A normally consolidated undisturbed clay has a liquid limit of 58%. What is the compression index (Cc) of this clay?

Which of the following assumptions regarding Laplace equation for two-dimensional flow through soil is NOT valid?