The empty space between the shaded balls and hallow balls as shown in the diagram is called:

The empty space between the shaded balls and hollow balls as shown in the diagram is called

The empty space between the shaded balls and hollow balls as shown in the diagram is called

A ball having mass m and velocity u makes a head on collision with another ball. After collision velocity of the ball of mass m was found to be V in the direction of its original motion. The interaction force between the two balls during their collision has been shown in the graph. The area of the shaded part of the graph is same as the area of the not shaded part. Find the velocity of the balls at the instant they were having equal velocity.

A small ball is hung by a string fixed to a wall. The ball is pushed away from the wall. The forces action on the ball are shown in the diagram. Which of the following statements is wrong?

A ball is moving towards the wall as shown in diagram then momentum is conserved

A ball is moving towards the wall as shown in diagram then momentum is conserved

The space between the outermost filled energy band and the next empty band is called ____.