Home
Class 12
CHEMISTRY
The energy of a 700- nm photo is :-...

The energy of a 700- nm photo is :-

A

1.77 eV

B

2.47 eV

C

700 eV

D

3.57 eV

Text Solution

Verified by Experts

The correct Answer is:
1
Promotional Banner

Topper's Solved these Questions

  • ALKYL AND ARYL HALIDE

    ALLEN|Exercise EXERCISE-05 (B)|37 Videos

  • BASIC INTRODUCTION AND NOMENCLATURE

    ALLEN|Exercise MCQ|12 Videos

Similar Questions

Explore conceptually related problems

The energy of a photon in eV of wavelength lambda nm will be

The energy of a photo of wavelenght lambda is :

The energy of a photon of wavelength 390 nm is nearly

The energy of a photon of radiation having wavelength 300 nm is,

Light of frequency v is incident on a substance of threshold frequency v(v lt v) . The energy of the emitted photo-electron will be

A photon of wavelenth 3000 A strikes a metal surface, the work function of the metal being 2.20eV . Calculate (i) the energy of the photon in eV(ii) the kinetic energy of the emitted photo electron and (iii) the velocity of the photo electron.

Calculate the energy of a photon of blue light, lambda =450 nm in air (or vacuum).

If wavelength of radiation is 4000Å=400nm then the energy of the photon is

The wavelength of maximum emitted energy of a body at 700 K is 4.08 mu m . If the temperature of the body is raised to 1400 K , the wavelength of maximum emitted energy will be

ALLEN-Atomic Structure-All Questions
  1. The specific charge of a proton is 9.6xx10^(7)"C kg"^(-1). The speci...

    Text Solution

    |

  2. It is known that an atom contains protons, neutrons and almost electro...

    Text Solution

    |

  3. The energy of a 700- nm photo is :-

    Text Solution

    |

  4. One energy difference between the states n = 2 and n= 3 is "E eV", in ...

    Text Solution

    |

  5. Which of the following statements (regarding an atom of H ) are correc...

    Text Solution

    |

  6. The ionisation potential of hydrogen atom is 13.6 volt. The energy req...

    Text Solution

    |

  7. When the electron of a hydrogen atom jumps from the n=4 to the n=1 s...

    Text Solution

    |

  8. An electron in an atom jumps in such a way that its kinetic energy cha...

    Text Solution

    |

  9. Which orbital notation does not have spherical node?

    Text Solution

    |

  10. In how many elements does the electron have the quantum number of n =...

    Text Solution

    |

  11. For principle quantum number n = 4, the total number of orbitals havin...

    Text Solution

    |

  12. Choose the wrong one on the basis of Bohr 's theory :-

    Text Solution

    |

  13. In which transition minimum energy is emitted :-

    Text Solution

    |

  14. If the value of principal quantum number is 4 , the possible values fo...

    Text Solution

    |

  15. If the value of E=-78.4 "kcal//mol", the order of the orbit in hydroge...

    Text Solution

    |

  16. The ratio of energy of the electron in ground state of hydrogen to the...

    Text Solution

    |

  17. The most intense line in the Brackett series of the spectrum of atomic...

    Text Solution

    |

  18. If kinetic energy of a proton is increased nine times the wavelength o...

    Text Solution

    |

  19. If first ionisation potential of a hypothetical atom is 16 V, then the...

    Text Solution

    |

  20. The angular momentum J of the electron in a hydrogen atom is proportio...

    Text Solution

    |