D.) Nearly all light that strikes an "Opaque" <span>object will be absorbed by the object.
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RA 4h 21m 39s | Dec +22° 59′ 54″
Answer:
Doubling the amount of charge on one of the particles.
Explanation:
The force between two charges is given by :

Where
r is the distance between charges
or

On doubling the charge on one of the particle,
F' = 2F
So, the force gets doubled. Hence, the correct option is (d).