Why are smoke particles suitable in smoke cell experiment
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they provide the dark background for the air bright specks to be observed as they collide
Because smoke particles are light and can scatter light rays shining on them.
because they are light and visible
The smoke particles are light and visible.
Smoke particles are visible as opposed to air particles
smoke particles can scatter rays of light shining on them and they are also light .
They are lighter so that air particles can easily displace the during collision and brighter to reflect light for easy of observation.
they provide the dark background for the air bright specks to be observed as they collide