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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following remains unchanged (for the system) during an inelastic collision?
1. | Mechanical energy | 2. | Kinetic energy |
3. | Momentum | 4. | All of the above. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA car of mass 100 kg and traveling at 20 m/s collides with a truck weighing 1 tonne traveling at 9 km/h in the same direction. The car bounces back at a speed of 5 m/s. The speed of the truck after the impact will be:
1. 11.5 m/s
2. 5 m/s
3. 18 m/s
4. 12 m/s
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA body of mass \(2\) kg moving with a velocity of \(3\) m/s collides with a body of mass of \(1\) kg moving with a velocity of \(4\) m/s in the opposite direction. If the collision is head-on and completely inelastic, then the wrong statement is:
1. | Both bodies move together with a velocity \((2/3)\) m/s. |
2. | The momentum of the system is \(2\) kg-m/s throughout. |
3. | The momentum of the system is \(10\) kg-m/s. |
4. | The loss of KE for the system is \((49/3)\) J. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyOn a frictionless surface, a block of mass \(M\) moving at speed \(v\) collides elastically with another block of the same mass \(M\) which is initially at rest. After the collision, the first block moves at an angle \(\theta\) to its initial direction and has a speed \(\frac{v}{3}\). The second block’s speed after the collision will be:
1. | \(\frac{2\sqrt{2}}{3}v\) | 2. | \(\frac{3}{4}v\) |
3. | \(\frac{3}{\sqrt{2}}v\) | 4. | \(\frac{\sqrt{3}}{2}v\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA body of mass m moving at a certain speed suffers a perfectly inelastic collision with a body of mass M at rest. The ratio of the final kinetic energy of the system to the initial kinetic energy will be:
1. | \(m \over {m + M}\) | 2. | \(M \over {m + M}\) |
3. | \({m + M} \over m\) | 4. | \({m + M} \over M\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFive balls are placed one after another along a straight line as shown in the figure. Initially, all the balls are at rest. Then the second ball is projected with speed towards the third ball. Mark the correct statement(s). (Assume all collisions to be head-on and elastic):
1. The total number of collisions in the process is 5.
2. The velocity of separation between the first and fifth ball after the last possible collision is
3. Finally, three balls remain stationary.
4. All of the above are correct.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA stone is projected from a horizontal plane. It attains maximum height, \(H\), and strikes a stationary smooth wall & falls on the ground vertically below the maximum height. Assuming the collision to be elastic, the height of the point on the wall where the ball will strike will be:
1. | \(\frac{H}{2} \) | 2. | \(\frac{H}{4} \) |
3. | \(\frac{3 H}{4} \) | 4. | None of these |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology