Figure 7(a) and 7(b) show the readings of a micrometer screw gauge before and after a drop of oil are placed at the jaws.

Figure 7(a) and 7(b) show the readings of a micrometer screw gauge before and after a drop of oil are placed at the jaws.

When the drop was made to fall on a shallow tray having water whose surface was sprinkled with lycopodium powder, it spread on the surface to form a patch of area Acm². Given that the size of one molecule of oil is 3 x 10^-6cm.
a) Determine:
I. The diameter of the one drop of oil
II.The area of the patch A
b) State one assumption made in this experiment.

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b) Oil spreads to monolayer thickness Oil drop is assumed to be perfectly spherical.

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sharon kalunda answered the question on September 30, 2019 at 09:35

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