Q.1. a) Explain stress-strain relationship for a loaded steel wire.
b) Define the following terms:
i) Yield point
ii) Tensile strength
iii) Elastic limit
Q.2.State Hook’s law.
If the length and diameter of two wires made up of same material are in the ratio 1:2 each, what is
the ratio of their Young’s Modulus?
Q.3.Write & prove Bernoulis theorem /
Q.4. Define coefficient of viscosity?
Q.5.Define surface tension ? explain why pressure difference is more in a bubble than a drop?
Q.6 Write Pascals law of pressure ?
Q.7. Define terminal velocity ? Using stokes law derive the expression of terminal velocity ?
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