A square lead slab of side \(50\) cm and thickness \(10\) cm is subject to a shearing force (on its narrow face) of \(9.0\times 10^{4}~\text{N}\)$\mathrm{}$. The lower edge is riveted to the floor as shown in the figure below. How much will the upper edge be displaced? (Shear modulus of lead \(= 5.6\times 10^{9}~\text{Nm}^{-2}\))

The average depth of the Indian Ocean is about \(3000\) m. The fractional compression, \(\dfrac{\Delta V}{V},\) of water at the bottom of the ocean is?
(Given that the bulk modulus of water is \(2.2\times10^{9}\) Nm^–2 and \(g=10\) ms^–2)
1. \(1.36\times10^{-3}\)
2. \(2.36\times10^{-3}\)
3. \(1.36\times10^{-2}\)
4. \(2.36\times10^{-2}\)