Home
Class 11
PHYSICS
The number of wavelengths of orange-red ...

The number of wavelengths of orange-red radia¬ tion of Kr-86 contained in one metre are_____.

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • Units and Measurements

    SL ARORA|Exercise Exercise|499 Videos

  • THERMODYNAMICS

    SL ARORA|Exercise Exercise|342 Videos

  • VECTORS

    SL ARORA|Exercise Problems For Self Practice|56 Videos

Similar Questions

Explore conceptually related problems

Light emitted by Krypton 86 is 6057.8021 Å. Calculate number of wavelengths of Krypton 86 in one metre. What is the order of magnitude ?

Find the total number of selections of at least one red ball from a bag containing 4 red balls and 5 black balls,balls of the same colour being identical.

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

the number of de broglie wavelength contained in the second bohr orbit of hydrogen atom is

A box contains 50 coloured stones. What is the total number of orange stones in the box if the probability of selecting an orange stone is 0 . 4

SL ARORA-Units and Measurements-Exercise
  1. The dimensional formula for Planck's constant (h) is

    Text Solution

    |

  2. In the followng dimensionally correct equation for force,F=x/Density=Y...

    Text Solution

    |

  3. The number of wavelengths of orange-red radia¬ tion of Kr-86 contained...

    Text Solution

    |

  4. Imagine a system of units in which the unit of mass is 100 kg, length ...

    Text Solution

    |

  5. E, m, L, G denote energy mass, angular momentum & gravitation constant...

    Text Solution

    |

  6. The number of particles is given by n = -D(n(2) - n(1))/( x(2) - x(1))...

    Text Solution

    |

  7. Give the number of significant figure in 2.64 xx 10^24 Kg .

    Text Solution

    |

  8. In the simplification of 2.13x24.78 /458.2, the numberof significant f...

    Text Solution

    |

  9. The diameter of circle is 1.06m. Calculate the area enclosed by the ci...

    Text Solution

    |

  10. The errors which tend to occur in one direction,positive or negative, ...

    Text Solution

    |

  11. The maximum fractional error in the quotient of two quantities is equa...

    Text Solution

    |

  12. The resistance R= (V)/(I), where V= (100+-5.0) V and I=(10+-0.2)A. Fin...

    Text Solution

    |

  13. A physical quantity P = a^3b^2/cd. If the percentageerrors in the meas...

    Text Solution

    |

  14. A physical quantity X is given by X=(2k^(3)l^(2))/(msqrt(n)) The p...

    Text Solution

    |

  15. Define length.

    Text Solution

    |

  16. Define a prototype metre

    Text Solution

    |

  17. Define standard metre in terms of the wavelength of light.

    Text Solution

    |

  18. What is the accuracy of the metre defined in terms of wavelength of li...

    Text Solution

    |

  19. Define standard metre in terms of velocity of light.

    Text Solution

    |

  20. How many light years are there in 1 metre?

    Text Solution

    |