Home
Class 11
PHYSICS
Assertion : A rocket moves forward by pu...

Assertion : A rocket moves forward by pushing the surrounding air backwards. Reason : it derives the necessary thrust to move forward according to Newton's third law of motion.

A

if both assertion and reason are true and reason is the correct explanation of the assertion.

B

if both assertion and reason are true and reason is not correct explanation of the assertion.

C

if assertion is true, but reason is false.

D

if both assertion and reason are false.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Centre of mass

    MODERN PUBLICATION|Exercise Exercise|30 Videos
  • Dynamics of Circular Motion

    MODERN PUBLICATION|Exercise Exercise|81 Videos

Similar Questions

Explore conceptually related problems

Zone of exclusion surrounds:

Explain why:- a cricketer moves his hands backwards while holding a catch.

What are forward and reverse mutations?

Air helps in moving-

Stomata are surrounded by:

When the activation energies of the forward and backward reactions are equal, then :

MODERN PUBLICATION-Competitive Exam Question-Exercise
  1. Assertion : To keep a body moving with a uniform velocity along a stra...

    Text Solution

    |

  2. Assertion : If two balls are released simultaneously from a certain he...

    Text Solution

    |

  3. Assertion : A rocket moves forward by pushing the surrounding air back...

    Text Solution

    |

  4. Assertion : The propulsion of rocket is based on the principle of cons...

    Text Solution

    |

  5. Assertion : A rocket in flight is an illustration of the application o...

    Text Solution

    |

  6. Assertion : Frictional forces are conservation forces. ...

    Text Solution

    |

  7. Assertion : Two bodies, one sliding along a smooth inclined plane and...

    Text Solution

    |

  8. Assertion : The driver in a vehicle moving with a constant speed on a ...

    Text Solution

    |

  9. Assertion : The driver in a vehicle moving with a constant speed on a ...

    Text Solution

    |

  10. Assertion : A freely falling body is in the state of weightlessness. ...

    Text Solution

    |

  11. Assertion : A man in a closed cabin, which is falling freely, does not...

    Text Solution

    |

  12. Assertion : A body can be at rest even when a number of external force...

    Text Solution

    |

  13. Assertion : It is difficult to move a cycle along the road with its br...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  16. Assertion : Mountain roads rarely go straight up the slope. ...

    Text Solution

    |

  17. Assertion : Use of ball bearings between two moving parts of a machin...

    Text Solution

    |

  18. Assertion : A body of mass 1 kg is making 1 r.p.s. in a circle of rad...

    Text Solution

    |

  19. Assertion : The centrifugal force is a pseudo force. ...

    Text Solution

    |

  20. Assertion : During turning, cyclist leans towards the centre of the c...

    Text Solution

    |