When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance. The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.
If a negatively charged object is used to charge a neutral object by induction, then the neutral object will acquire a positive charge. And if a positively charged object is used to charge a neutral object by induction, then the neutral object will acquire a negative charge.
Here's link
to the answer:
bit.ly/3gVQKw3
It's Photoelectric Effect, I just a test with this same question. I am not good for explaining exactly how, but I was right.
