NEET Physics: Questions 920 - 923 of 2099
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Question number: 920
Question number: 921
Question number: 922
A 30 g bullet pierces through a plate of mass m 1 = 1 kg and then comes to rest inside a second plate of mass m 2 = 1.5 kg. It is found that the two plates, initially at rest, now move with equal velocities. The percentage loss in the initial velocity of bullet when it is between m1 and m 2. (Neglect any loss of material of the bodies, due to action of bullet. ) will be -
Question number: 923
Which of the following hold when two particles of masses m 1 and m 2 undergo elastic collision?
(1) When m, = m 2 and m 2 is stationary, there is maximum transfer of kinetic energy in head on collision
(2) When m i = va 2 and m 2 is stationary, there is maximum transfer of momentum in head on collision
(3) When m l > > m 2 and m 2 is stationary, after head on collision m 2 moves with twice the velocity of m 1
(4) When the collision is oblique and m 1 = m 2 with m 2 stationary, after the collision the particle move in opposite directions.
Select the correct answers and mark it according to the following codes
2 and 4 are correct
1 and 2 are correct
1 and 3 are correct
1, 2 and 3 are correct