Observe the pictures A and B given in Fig. 13.1 carefully.

Which of the following statement is correct for the above given pictures?

Options

A. In A, cars 1 and 2 will come closer and in B, cars 3 and 4 will come closer.
B. In A, cars 1 and 2 will move away from each other and in B, cars 3 and 4 will move away
C. In A, cars 1 and 2 will move away and in B, 3 and 4 will come closer to each other.
D. In A, cars 1 and 2 will come closer to each other and in B, 3 and 4 will move away from each other.

Answer

D

Explanation

Opposite poles attract each other and same poles repel each other as in case A, magnets on cars 1 and 2 are facing each other with opposite poles, the cars will be attracted. In case B, magnets on cars 3 and 4 are facing each other with the same pole, they will repel.