I think it because of UV rays ultra violet ray which can make their colors different
Answer:

Explanation:
Radius of the pollen is given as

Volume of the pollen is given as



mass of the pollen is given as


so weight of the pollen is given as



Now electric force on the pollen is given



now ratio of electric force and weight is given as


The answer is refracts parallel to the axis of the lens
9 because speed=distance/ time