Home
Class 11
PHYSICS
Universal time is based on :...

Universal time is based on :

A

rotation of the earth on its own axis

B

earth's orbital motion around the sun

C

vibration of cesium atom

D

oscillation of quartz clock

Text Solution

Verified by Experts

The correct Answer is:
C
It has maximum accuracy.
Promotional Banner

Topper's Solved these Questions

  • NATURE OF PHYSICAL WORLD AND MEASUREMENT

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (II. Very Short Answer Questions.)|128 Videos

  • NATURE OF PHYSICAL WORLD AND MEASUREMENT

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (III. Short Answer Questions.)|24 Videos

  • NATURE OF PHYSICAL WORLD AND MEASUREMENT

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (VI. Conceptual Questions.)|20 Videos

  • MOTION OF SYSTEM OF PARTICLES AND BODIES

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWER (NUMERICAL PROBLEMS)|60 Videos

  • OSCILLATIONS

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS ( CONCEPTUAL QUESTIONS.)|24 Videos

Similar Questions

Explore conceptually related problems

Universal solvent is

Classify animal breeding based on time.

"Universal Donor" and "Universal Recipients" blood group are ____________ and ____________ respectively

Universal Donor and Universal Recipients blood group are …….. And …….. Respectively .

"Universal Donor" and "Universal Recipients" blood group are ____ and ____ respectively.

Universal gravitational constant (a) G = 6.684 xx 10^(-10) Nm^(2) kg^(-1)

PREMIERS PUBLISHERS-NATURE OF PHYSICAL WORLD AND MEASUREMENT-OTHER IMPORTANT QUESTIONS & ANSWERS (I. Multiple Choice Questions.)
  1. Match the following :

    Text Solution

    |

  2. The value of Planck's constant is "".

    Text Solution

    |

  3. Universal time is based on :

    Text Solution

    |

  4. 1 pascal is equal to :

    Text Solution

    |

  5. Choose the correct statement from the following statements :

    Text Solution

    |

  6. Which one of the following doesn't has the same unit as others?

    Text Solution

    |

  7. Which of the following statements are correct? (i) A physical quanti...

    Text Solution

    |

  8. Inertia has the same unit as:

    Text Solution

    |

  9. Which of the following pairs of quantities and their units is a proper...

    Text Solution

    |

  10. Choose the odd man out from the following physical quantities:

    Text Solution

    |

  11. Which one of the following relations is wrong?

    Text Solution

    |

  12. 1 CSL is the largest practical unit of :

    Text Solution

    |

  13. Match the physical quantities in column I with their S.I. units in col...

    Text Solution

    |

  14. 1 minute = ……….rad.

    Text Solution

    |

  15. (I) Least count of screw gauge is 0.01 mm (II) Least count of vernie...

    Text Solution

    |

  16. From the following statements, choose the incorrect statement:

    Text Solution

    |

  17. Least cound of metre scale is :

    Text Solution

    |

  18. The ratio of the dimension of planck constant and that of moment of in...

    Text Solution

    |

  19. Select the incorrect statement from the following statements : (i) T...

    Text Solution

    |

  20. The angle subtended by a coin of radius 1 cm held at a distance of 80 ...

    Text Solution

    |