JEE Advanced Model Paper 15 with solutions for online practice

Question : 15 of 60

Marks: +1, -0

Two balls of same mass are thrown downwards at the same time with initial velocities VA = 0 and VB = 0 and V m/s from the positions shown in figure. All the collisions are elastic in nature. The centers of the balls A and B are in the same vertical line, then choose the correct option(s)

minimum value of v for which ball A reaches its initial point of release in one collision is √60
Minimum value of v for which ball A reaches its initial point of release is zero
for |v| < √160 m/s ball A reaches its initial point of release after even number ofcollisions with ball B
for ball A reaches its initial point of release after odd number of collisions with ball B

Validate

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