1. Illustrate the stress and strain of solids.
2. What do you mean by the Youngβs modulus for steel is π = π. π Γ ππππ π΅πβπ ? Explain briefly.
3. Gold has a face centered cubic unit cell and has the density ππ. π π ππβπ . Calculate the length along an edge. (π΄π’ = 197 π πππ β1 )
4. Write down five real life applications of surface tension.
5. A capillary tube with an inside diameter of πππ ππ can support a πππ ππ column of liquid that has a density of πππππ πππβπ . If π = π. π then is it possible to find the surface tension of the liquid? If not, then write down the reason.
6. Write a short note on polymer materials and amorphous solid.Β
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