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What is escape velocity ?

  • Escape velocity is the maximum velocity with which a body should be projected from the surface of earth so it do not go beyond gravitational field of earth.
  • Escape velocity is the minimum velocity with which a body should be projected from the surface of earth so it do not go beyond gravitational field of earth.
  • Escape velocity is the minimum velocity with which a body should be projected from the surface of earth so as it goes out of gravitational field of earth and never return to earth.
  • Escape velocity is the maximum velocity with which a body should be projected from the surface of earth so as it goes out of gravitational field of earth and never return to earth.
Similar Questions :

1. Force of attraction between the molecules of different substances is called

  • Surface tension
  • Cohensive force
  • Adhesive force
  • None of above

2. Who discovered Atom ?

  • Madam Curie
  • James Chadwick
  • Rutherford
  • John Dalton

3. What is displacement ?

  • Longest distance covered by a body in a random direction.
  • Shortest distance covered by a body in a random direction.
  • Shortest distance covered by a body in a definite direction.
  • Longest distance covered by a body in a definite direction.

4. Which of following in not a property of cathode ray.

  • Cathode rays are invisible and travel in a straight line.
  • These rays can ionise gases.
  • These rays can penetrate through thin metal foils.
  • These rays make materials cool on which they fall.

5. The angle of reflection is equal to the angle of incidence.

  • True
  • False
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