Which one of the following statement does not hold good when two balls of masses `m_1 and m_2` undergo elastic collision

Options

A. When `m_1 lt lt m_2 and m_2` at rest, there will be maximum transfer of momentum
B. When `m_1 gt gt m_2 ` at rest . After collision the ball of mass `m_2 ` moves with four times the velocity of ` m_1`
C. When ` m_1 = m_2 and m_2` at rest , there will be maximum transfer of K.E.
D. When collision is oblique and `m_2` at rest with `m_1 = m_2` after collision the balls move in opposite directions

Answer

B, D

Explanation

When ` m_1 gt m_2 and m_2` at rest , after collision the ball of mass `m_2` moves with double the velocity of `u_1`.So option (b) is correct
When collision is oblique and `m_2` at rest with `m_1 = m_2` after collision the ball moves in perpendicular direction. So option (d) is also incorrect.