Home
Class 11
PHYSICS
Which of the following is smallest unit?...

Which of the following is smallest unit?

A

millimetre

B

angstrom

C

fermi

D

metre.

Text Solution

Verified by Experts

The correct Answer is:
C
1mm`=10^(-3)m,1"Ã…"=10^(-10)m,1f m=10^(-15)m`
Among the given units fermi is the smallest unit.
Promotional Banner

Topper's Solved these Questions

  • UNITS AND MEASUREMENTS

    NCERT FINGERTIPS|Exercise Measurement Of Mass|9 Videos

  • UNITS AND MEASUREMENTS

    NCERT FINGERTIPS|Exercise Accuracy, Precision Of Instruments And Errors In Measurements|14 Videos

  • UNITS AND MEASUREMENTS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • THERMODYNAMICS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • WAVES

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

Which of the following is the smallest unit ?

Which of the following is smallest number

Which of the following is the smallest in size?

Which of the following is the smallest in size?

Which of the following is smallest RNA ?

Which one of the following is smallest in size?

Which one of the following is the smallest unit?

NCERT FINGERTIPS-UNITS AND MEASUREMENTS-Measurement Of Length
  1. Fathom is the unit to measure the

    Text Solution

    |

  2. Which of the following is not unit of length?

    Text Solution

    |

  3. Which of the following is smallest unit?

    Text Solution

    |

  4. Match the column I with Column II. .

    Text Solution

    |

  5. Which one of the following intruments is not used for the measurement ...

    Text Solution

    |

  6. A new unit of length is chosen such that the speed of light in vecuum ...

    Text Solution

    |

  7. Light year is :

    Text Solution

    |

  8. Light year is a unit of

    Text Solution

    |

  9. How many light years alpha centauri away from the earth?

    Text Solution

    |

  10. Which one of the following methods is used to measure distance of a pl...

    Text Solution

    |

  11. Laser beams are used to measure long distances because

    Text Solution

    |

  12. The distnace of the moon from the earth is about 60 times the radius o...

    Text Solution

    |

  13. The sun's angular diameter is measured to be 1920''. The distance of t...

    Text Solution

    |

  14. Calculate the length of the arc of a circle of radius 31.0 cm which su...

    Text Solution

    |

  15. The order of magnitude of the diameter of the earth is (diamtere of th...

    Text Solution

    |

  16. How many wavelength of Kr^(86) are there is one metre

    Text Solution

    |

  17. The ratio of molar volume to atomic volume for 1 mole of hydrogen is (...

    Text Solution

    |

  18. If the size of bacteria is 1 micron, what will be the number of it in ...

    Text Solution

    |

  19. One astronomical unit (AU) is equal to

    Text Solution

    |

  20. What is the ratio of volume of atom of the volume of nucleus?

    Text Solution

    |