Elasticity, fluid mechanics, surface tension, viscosity, thermal expansion.
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Q1 · Properties of Bulk Matter · HARD
A wire 2 m long with cross-section 1 mm² stretches by 1 mm under a 100 N load. Young's modulus of the material is:
Q2 · Properties of Bulk Matter · EASY
Surface tension has the same dimensions as:
Q3 · Properties of Bulk Matter · EASY
A spherical drop of water has radius 1 mm. If the surface tension of water is 0.07 N/m, the excess pressure inside the drop is:
Q4 · Properties of Bulk Matter · MEDIUM
A metallic rod of length 2 m and coefficient of linear expansion 1.2 × 10⁻⁵ per °C is heated from 20°C to 70°C. The increase in its length is:
Q5 · Properties of Bulk Matter · HARD
Two capillary tubes of radii r and 2r are dipped vertically in water. If the water rises to height h in the first tube, the height to which it rises in the second tube is: