Home
Class 12
PHYSICS
Assertion :- The mechanical energy of ea...

Assertion `:-` The mechanical energy of earth-moon system remains same when a another heavenly body passes nearby the earth`-`moon system.
Reason `:-` Force exerted by heavenly body on the earth`-`moon system is non`-`conservative.

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion.

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are False

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Centre of mass of the earth-moon system lies

The earth is slowing down and as a result the moon is coming nearer to it. The angular momentum of the earth-moon system is not conserved.

If mass of a body is M on the earth surface, then the mass of the same body on the moon surface is

When a body is taken from the Earth to the Moon ?

Assertion : The gravitational attraction of moon is much less than that of earth. Reason : Moon is the neutral satellite of the earth.

The magnitude of gravitational potential energy of the moon earth system is U with zero potential energy at infinite separation. The kinetic energy of the moon with respect to the earth is K.

the path of the center of mass of earth- moon system around the sun is -circular path -helical path -parabolic path -elliptical path

The mass of the moon is about 1.2% of the mass of the earth. Compared to the gravitational force the earth exerts on the moon, the gravitational force the moon exerts on earth

ALLEN-TEST PAPER-Exercise (Physics)
  1. Statement-1 : For any collision, coefficient of restitution (e0 lies ...

    Text Solution

    |

  2. Assertion :- To observe the motion of planets, the sun may be assumed ...

    Text Solution

    |

  3. Assertion :- The mechanical energy of earth-moon system remains same w...

    Text Solution

    |

  4. The average velocity of a particle moving on a straight line is zero i...

    Text Solution

    |

  5. Assertion:- A body may gain kinetic energy and potential energy simult...

    Text Solution

    |

  6. Assertion :- Newton's first law defines inertial frame of reference. ...

    Text Solution

    |

  7. A man of mass 80kg pushes a box of mass 20kg horizontally. The man mov...

    Text Solution

    |

  8. Assertion :- A particle has positive acceleration it means that its sp...

    Text Solution

    |

  9. Assertion :- The shape of trajactory depends on the acceleration and i...

    Text Solution

    |

  10. Assertion :- In projectile motion a particle is projected at some angl...

    Text Solution

    |

  11. Assertion :- A block is hanged from spring. Spring force on block grav...

    Text Solution

    |

  12. Assertion :- Tension in massless string may be different at different ...

    Text Solution

    |

  13. Assertion :- Work done by frictional force may be sometimes path indep...

    Text Solution

    |

  14. Assertion :- Work done is positive when force acts in the direction of...

    Text Solution

    |

  15. STATEMENT-1: It is easier to pull a heavy object than to push it on a ...

    Text Solution

    |

  16. Assertion :- When a man climbs the rope friction force acts in downwar...

    Text Solution

    |

  17. Assertion :- According work energy theorem net work done on a body is ...

    Text Solution

    |

  18. Assertion :- Mass and energy are not conserved separately,but are cons...

    Text Solution

    |

  19. Assertion :- When a spring is elongated work done by spring is negativ...

    Text Solution

    |

  20. A particle is moving on a circular path such that at any instant its p...

    Text Solution

    |