Question

The zig zag movment of pollen grains over water surface proved

Answer 1

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The zig zag movment of pollen grains over water surface proved the "BROWNIAN MOTION".

Brownian motion was first noticed by a botanist, Robert Brown and hence named as Brownian motion which gave the best evidence for :-■existence and
■ movement of particles in the year 1827.

》》For example:-smoke, soot, dust, or pollen,etc.

He suspended some pollen grains in water and then looked through a microscope. He observed that the pollen grains were moving in a zigzag manner. The movement further increases when the water is warmed.

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Answer 2

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