Home
Class 12
CHEMISTRY
What is the energy in joule of a photon ...

What is the energy in joule of a photon of light with wavelength `4.0xx10^3 `nm ?

A

`7.5xx10^(-20)`

B

`5.0xx10^(-20)`

C

`2.0xx10^(-10)`

D

`2.5xx10^(-10)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER (GASES AND LIQUIDS)

    MBD PUBLICATION|Exercise QUESTION BANK|345 Videos

  • SURFACE CHEMISTRY

    MBD PUBLICATION|Exercise Question Bank|390 Videos

Similar Questions

Explore conceptually related problems

frequency of light wave of wavelength 600 nm is

The energy of a photon of red light (8000 A^@) is nearly

MBD PUBLICATION-STRUCTURE OF ATOM-QUESTION TYPE
  1. Which has minimum number of unpaired d-electrons ?

    Text Solution

    |

  2. Which ion has the maximum magnetic moment ?

    Text Solution

    |

  3. What is the energy in joule of a photon of light with wavelength 4.0xx...

    Text Solution

    |

  4. If the ionisation potential for hydrogen atom is 13.6 eV, then the wav...

    Text Solution

    |

  5. The maximum wavelength of light that can excite an electron from first...

    Text Solution

    |

  6. The work function for a metal is 4eV. To emit a photo electron of zero...

    Text Solution

    |

  7. Ultraviolet light of 6.2 eV falls on aluminium surface (work function ...

    Text Solution

    |

  8. The series limit for Balmer series of H-spectra is………

    Text Solution

    |

  9. The wavelength of radiation emitted when electron falls from 4th Bohr'...

    Text Solution

    |

  10. The energy of the electron is first orbit of He^+ is (RH = -8712xx10^(...

    Text Solution

    |

  11. E1 for He^+ is -54.4 eV. The E2 for He^+ would be:

    Text Solution

    |

  12. The highest excited state that unexcited hydrogen atom can reach when ...

    Text Solution

    |

  13. An electron will have the highest energy in the set:

    Text Solution

    |

  14. The line spectrum observed when electron falls from the higher level i...

    Text Solution

    |

  15. The total number of fundamental particles in one atom of overset 14(6...

    Text Solution

    |

  16. Which orbital is spherically symmetrical ?

    Text Solution

    |

  17. Which transition metal cation has maximum unpaired electrons ?

    Text Solution

    |

  18. The equation lambda=h/mu was deduced by:

    Text Solution

    |

  19. The electronic transition from n=2 to n=1 will produce shortest wavele...

    Text Solution

    |

  20. Which has highest e/m ratio ?

    Text Solution

    |