Question

A force of 0.5N is present in between two charges. If separation between them becomes half, then new force between them is​

Answer 1

The force between the two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Hence, if distance between charges is halved (charges remaining kept constant), the force between the two charges is quadrupled.  So if there was a force of 0.5N between two charges initially, then the force between them would be quadrupled, that is 0.5N x 4 = 2N

Please mark my answer as brainliest if you found it helpful.