Geology

Earthquake The word earthquake is used in the most general sense to describe any seismic event; whether natural or caused by humans; that generates seismic…

Applications of surface tension (i) During stormy weather, oil is poured into the sea around the ship. As the surface tension of oil is less…

Impurities present in a liquid appreciably affect surface tension. A highly soluble substance like salt increases the surface tension whereas sparingly soluble substances like soap…

If the free surface of a liquid is plane, then the surface tension acts horizontally (Fig. a). It has no component perpendicular to the horizontal…

Molecular Theory of Surface Tension: Consider two molecules P and Q as shown in Figure. Taking them as centers and molecular range as radius, a…

Experiments to demonstrate surface tension: (i) When a painting brush is dipped into water, its hair gets separated from each other. When the brush is…