Lycopodium is lightly sprinkled on a clean water surface in a large tray.A red hot needle is plunged at the center of the water surface.State and explain the observation.
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Explanation:
Lycopodium powder spreads on the entire surface of water when it is sprinkled evenly. The drop pushes the lycopodium powder particles away and creates a circular area where it falls, thus enabling us to measure the area where oleic acid spreads.
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