Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Center of Mass question

2019 · 12 Jan · Shift 2 · Q51
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Center of Mass
  5. /2019 · 12 Jan · Shift 2 · Q51

Center of Mass question

2019 · 12 Jan · Shift 2 · Q51

JEE MainPhysicsCenter of MassMCQ+4 / −1
An alpha-particle of mass m suffers 1-dimensional elastic collision with a nucleus at rest of unknown mass. It is scattered directly backwards losing, 64% of its initial kinetic energy. The mass of the nucleus is
  1. A
    2m
  2. B
    4m
  3. C
    1.5m
  4. D
    3.5m
PreviousNext

More from Center of Mass

  • A proton of mass m collides elastically with a particle of unknown mass at rest. After the collision, the proton and the unknown particle are seen moving at an angle of 90o with respect to each other. The mass of unknown particle is :2018 · MCQ
  • The mass of a hydrogen molecule is 3.32 × 10-27 kg. If 1023 hydrogen molecules strike, per second, a fixed wall of area 2 cm2 at an angle of 45o to the normal, and rebound elastically with a speed of 103 m/s, then the pressure on…2018 · MCQ
  • In a collinear collision, a particle with an initial speed v0 strikes a stationary particle of the same mass. If the final total kinetic energy is 50% greater than the original kinetic energy, the magnitude of the relative velocity between…2018 · MCQ
  • Two particles A and B of equal mass M are moving with the same speed υ as shown in the figure. They collide completely inelastically and move as a single particle C. The angle θ that the path of C makes with the X-axis is… Includes diagram2017 · MCQ
  • In the figure shown ABC is a uniform wire. If centre of mass of wire lies vertically below point A, then ABBC​ is close to : Includes diagram2016 · MCQ
  • A neutron moving with a speed ‘v’ makes a head on collision with a stationary hydrogen atom in ground state. The minimum kinetic energy of the neutron for which inelastic collision will take place is :2016 · MCQ
  • Distance of the center of mass of a solid uniform cone from its vertex is z0​. If the radius of its base is R and its height is h then z0​ is equal to :2015 · MCQ
  • A particle of mass m moving in the x direction with speed 2v is hit by another particle of mass 2m moving in the y direction with speed v. If the collision is perfectly inelastic, the percentage loss in the energy during the…2015 · MCQ