Home
Class 11
CHEMISTRY
Frequency of a photon is 1.2xx10^(15)Hz....

Frequency of a photon is `1.2xx10^(15)Hz`. Calculate its energy in J.

Text Solution

Verified by Experts

`E=hv=7.95xx10^(-19)J`.
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    CHHAYA PUBLICATION|Exercise EXERCISE (NUMERICAL PROBLEMS)|38 Videos
  • STRUCTURE OF ATOM

    CHHAYA PUBLICATION|Exercise PRACTICE SET|15 Videos
  • STRUCTURE OF ATOM

    CHHAYA PUBLICATION|Exercise EXERCISE (FILL IN THE BLANKS)|12 Videos
  • STATES OF MATTER : GASES AND LIQUIDS

    CHHAYA PUBLICATION|Exercise PRACTICE SET|10 Videos

Similar Questions

Explore conceptually related problems

The threshold frequency, v_(0) for a metal is 7.0xx10^(14)s^(-1) . Calculate the kinetic energy of an electron emitted, when radiation of frequency v=1.2xx10^(15)s^(-1) , strikes this metal.

When a radiation of frequency 7.5xx10^(14)Hz strikes a metal surface, the maximum kinetic enegy attained by the emitted electrons is 1.6xx10^(-19)J . Calculate the threshold frequency of the metal.

The threshold frequency for a photosensitive metal is 3.3 xx 10^(14) Hz . If a light of frequency 8.2 xx 10^(14)Hz is incident on this metal, the cut-off voltage for the photoelectron emission is nearly.

If the photon of the wavelength 150 pm strikes an atom, one of its inner bound electrons is ejected out with a velocity of 1.5xx10^7 ms^-1 . Calculate the energy with which it is bound to the nucleus.

The de Broglie wavelenght of an electron is 0.4xx10^(-10) m when it kinetic energy is 1.0 kev . Its wavelenght will be 1.0xx10^(-10)m . When its kinetic energy is

If the photon of the wavelength 150 pm strikes an atom and one of its inner bound electrons is ejected out with a velocity of 1.5xx10^(7)m*s^(-1) , calculate the energy with which it is bound to the nucleus.

The frequency of an electromagnetic wave is 5 xx 10^19 Hz. What will be its wavelength? Give uses of this wave.

A photon of energy 8eV is incident on a metal plate with threshold frequency 1.6 xx 10^(15) Hz. The maximum kinetic energy of the emitted photo electrons is (given h= 6 xx 10^(-34) Js )

The power of a monochromatic light of frequency 6 xx 10^(14) Hz " is " 2 xx 10^(-3)W What is the energy of photon in the light beam?

CHHAYA PUBLICATION-STRUCTURE OF ATOM-EXERCISE (SHORT TYPE QUESTIONS)
  1. How does mass number differ from atomic mass?

    Text Solution

    |

  2. Indicate the number of electrons, protons and neutrons present in ""(9...

    Text Solution

    |

  3. Frequency of a photon is 1.2xx10^(15)Hz. Calculate its energy in J.

    Text Solution

    |

  4. Write three differences between rugherford's atomic model and Bohr's a...

    Text Solution

    |

  5. Calculate the wavelength of the spectral line having minimum energy in...

    Text Solution

    |

  6. The total energy of an electron in an atom is negative'-what does it s...

    Text Solution

    |

  7. The number of electrons in K, L and M-shell of an atom are 2.8 and 5 r...

    Text Solution

    |

  8. Indicate one application of wave property of electron.

    Text Solution

    |

  9. Heisenberg's uncertainty principle is not applicable to particles havi...

    Text Solution

    |

  10. Write Schrondinger's wave equation and indicate the significance of di...

    Text Solution

    |

  11. Half-filled and fully filled orbitals have extra stability. Explain.

    Text Solution

    |

  12. Copper(I) is diamagnetic but copper(II) is paramagnetic-why?

    Text Solution

    |

  13. An element has the electronic configuration [Ar]3d^(4) at its +3 oxida...

    Text Solution

    |

  14. Calculate the numbe of unpaired electrons in Pd(Z=46).

    Text Solution

    |

  15. Show that the third shell may contain a maximum of 18 electrons.

    Text Solution

    |

  16. Is there any existence of 3f-subshell in any atom?

    Text Solution

    |

  17. How many electrons in the Cl-atom at the most can have value, n+l=3?

    Text Solution

    |

  18. Between Cu^(2+) and Fe^(2+), which one is more paramagnetic?

    Text Solution

    |

  19. In the atom of an inert gas, the difference between the number of p-el...

    Text Solution

    |

  20. Which atoms are indicated by the following configurations? (i) [He]2...

    Text Solution

    |