Home
Class 12
PHYSICS
Assertion: A man in a dosed cabin fallin...

Assertion: A man in a dosed cabin falling freely does not experience gravity.
Reason: Inertial and gravitational mass have equivalence.

A

If both assertion `&` Reason are True `&` the Reason is a corrrect explanation of the Asserion.

B

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

C

If Assertion is Trie but the Reason is False.

D

If both Assertion `&` Reason are false

Text Solution

Verified by Experts

The correct Answer is:
A

Weight less state, both mases same thus forces cancle.
Promotional Banner

Topper's Solved these Questions

  • NEWTONS LAWS OF MOTION

    ALLEN |Exercise EXERCISE-II|112 Videos
  • NEWTON'S LAWS OF MOTION & FRICTION

    ALLEN |Exercise EXERCISE (JA)|4 Videos
  • RACE

    ALLEN |Exercise Basic Maths (Wave Motion & Dopplers Effect) (Stationary waves & doppler effect, beats)|25 Videos

Similar Questions

Explore conceptually related problems

Assertion : An astronaut in an orbiting space station above the earth experience weightlessness. Reason : An object moving around the earth under the infuence of earth's gravitational force is in a state of 'free fall'

A spherical planet far out in space has a mass M_(p) and diameter D_(p) . A particle of mass m falling freely near the surface of this planet will experience an acceleration due to gravity which is equal to

Assertion : Gravitational forces do not depend on the medium between the masses. Reason : Mediating particle responsible for gravitational force is graviton.

Assertion : Certain velocity of object freely falling in viscous liquid is know as terminal velocity . Reason : Terminal velocity and critical velocity are same .

When does a body (system) have different centre of gravity and centre of mass?

When an object is falling freely from the height h from the earth's surface its gravitational potential energy decreases gradually but its mechanical energy does not change.

Assertion: A man who falls from aheight on a cement floor receive more injury than when he falls from the same height on a heap of sand. Reason: The impulse applied by a cement floor is more than the impulse by sand floor.

Assertion:- A coin dropped in a closed trolley moving-down the smooth inclined plane. appears to fall normal to the floor of the trolley to a man fixed with the trolley. Reason:- The acceleration of coin relative to car (i.e. man) is g cos theta downward perpendicular inclined plane.

Assertion: Static frictional force is a self adjusting force. Reason: Force of static friction does not depend upon the mass of the body.

ALLEN -NEWTONS LAWS OF MOTION-EXERCISE-III
  1. Assertion: The driver in a vechicle moving with a constant speed on a ...

    Text Solution

    |

  2. Assertion: Frictional forces are conservative forces. Reason: Potent...

    Text Solution

    |

  3. Assertion: A man in a dosed cabin falling freely does not experience g...

    Text Solution

    |

  4. Assertion : Angle of repose is equal to angle of limiting friction. ...

    Text Solution

    |

  5. Assertion: On a rainy day, it is difficult to drive a car or bus at h...

    Text Solution

    |

  6. Assertion: Force of friction depends on the actual area of contact. ...

    Text Solution

    |

  7. Assertion: Static frictional force is a self adjusting force. Reason...

    Text Solution

    |

  8. Assertion : A body can be at rest even when it is under the action of ...

    Text Solution

    |

  9. Assertion: Frictional force is the component of contact force parallel...

    Text Solution

    |

  10. Assertion: Newton's first law can be derived from the second law. Re...

    Text Solution

    |

  11. These questions consists of two statements each printed as Assertion a...

    Text Solution

    |

  12. Assertion: Pseudo force is an imaginary force which is recongnised on...

    Text Solution

    |

  13. Assertion: A table cloth can be pulled from a table without dislodding...

    Text Solution

    |

  14. Assertion: Friction is a self-adjusting force. Reason: A block on th...

    Text Solution

    |

  15. Assertion: The apparent weight of a person standing in a lift which mo...

    Text Solution

    |

  16. Assertion: A body of weight 10N (W) is at rest on an inclined plane (m...

    Text Solution

    |

  17. Assertion: When a force vecF attempts to slide a body along a surface,...

    Text Solution

    |

  18. Assertion: Mass is a property of one object alone, whereas weight resu...

    Text Solution

    |

  19. Assertion: When brakes are applied on a wet road, a car is likely to s...

    Text Solution

    |

  20. Assertion : The force of tension on a body always act away from the bo...

    Text Solution

    |