00:01
So let us start with the concept which we are going to use here for this question.
00:08
So since we know that the electrostatic interaction concept.
00:14
So let us discuss first the electrostatic interaction, interaction concept.
00:25
So if we are having the two charges, let's say one is q1 and second one is the q2.
00:33
While the distance between these two point charges is r.
00:37
So according to coulomb's law, the force exerting in between these two point charges will be given by 1 upon 4 pi epsilon naught q1 into q2 by r square.
00:50
Right? now the nature of force will be attractive in nature, attractive in nature if both of the charges are having the opposite charge.
01:03
Okay, opposite charge like one will be positive, so another will be negative.
01:12
While the force exerting between these two point charges will be responsive in nature if both the charges have the same sign of charges, same sign of charges.
01:34
Like you will say both will be positive, positive or both will be negative, negative.
01:40
So this is what the concept on which we are going to see the given statements.
01:47
So if you have a look to the point a, so point charges of same charge only attract.
01:55
So this will become incorrect.
01:57
So this will become incorrect because we have seen if the charges will be same, so they will not attract to each other.
02:07
In fact, they will repel each other.
02:10
So we will say they will repel each other.
02:16
Now if you look to the statement b, charged and neutral extended objects can attract.
02:25
So statement b is also incorrect because it is not cleared about the neutral points objects.
02:32
Now if you see a statement c, charged and neutral extended objects do not interact.
02:40
So actually for c, c are not in the line with the principle.
02:52
So that is why we cannot see regarding that whether it is correct...