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A water drop of radius 10^-2 m is broken...

A water drop of radius `10^-2` m is brokenn into 1000 equal droplets. Calculate the gain in surface energy. Surface tension of water ils `0.075Nm^-1`

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To solve the problem of calculating the gain in surface energy when a water drop of radius \( R = 10^{-2} \) m is broken into 1000 equal droplets, we follow these steps: ### Step 1: Calculate the volume of the original drop The volume \( V \) of a sphere is given by the formula: \[ V = \frac{4}{3} \pi R^3 \] Substituting the radius \( R = 10^{-2} \) m: ...
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HC VERMA-SOME MECHANICAL PROPERTIES OF MATTER-Exercises
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  10. Consider the situation shown in figure. The force F is equalk to the m...

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  11. A sphere of mass 20 kg is suspended by a metal wire of unstretched le...

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  12. A steel wire of original length 1 m and cross-sectional area 4.00 mm^2...

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  13. A copper wire of cross sectional asrea 0.01 cm is under a tension of 2...

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  14. Find the increase in pressure required to decrease the volume of a wat...

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  15. Calculate the apprroximate change in density of water in a lake at a d...

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  16. A steel plate of face area 4 cm2 and thickness 0.5 cm is fixed rigidly...

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  17. A 5.0 cm long straight piece of thread is kept on the surface of water...

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  18. Find the excess pressure inside (a) a drop of mercury of radius 2 mm (...

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  19. Consider a small surface area of 1 mm2 at the top of a mercury drop of...

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  20. The capillaries shown in figure (14-E4) have inner radii 0.5 mm, 1.0 m...

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  21. The lower end of a capillary tube is immersed in mercury. The level of...

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