Home
Class 12
PHYSICS
An electron changes its position from or...

An electron changes its position from orbit `n = 4` to the orbit `n = 2` of an atom. The wavelength of the emitted radiation's is `(R =` Rydberg's constant)

A

`(16)/(R )`

B

`(16)/(3R)`

C

`(16)/(5R)`

D

`(16)/(7R)`

Text Solution

Verified by Experts

The correct Answer is:
B
`(1)/(lambda) = R [(1)/(n_(1)^(2)) - (1)/(n_(2)^(2))] = R [(1)/((2)^(2)) - (1)/((4)^(2))] rArr lambda = (16)/(3R)`
Promotional Banner

Topper's Solved these Questions

  • ATOMIC PHYSICS

    A2Z|Exercise Problems Based On Mixed Concepts|43 Videos

  • ATOMIC PHYSICS

    A2Z|Exercise Section B - Assertion Reasoning|13 Videos

  • ATOMIC PHYSICS

    A2Z|Exercise Bohr'S Hydrogen Model|90 Videos

  • ALTERNATING CURRENT

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • CURRENT ELECTRICITY

    A2Z|Exercise Section D - Chapter End Test|29 Videos

Similar Questions

Explore conceptually related problems

An electron makes a transition from orbit n = 4 to the orbit n = 2 of a hydrogen atom. The wave number of the emitted radiations (R = Rydberg's constant) will be

In Lyman series the wavelength lambda of emitted radiation is given by (R is rydberg constant)

if the electron in hydrogen orbit jumps form third orbit to second orbit, the wavelength of the emitted radiation is given by

If the electron in the hydrogen atom jumps from third orbit to second orbit the wavelength of the emitted radiation in term of Rydberg constant is

When an electron jumps from the orbit n=2 to n=4, then wavelength of the radiations absorbed will be where, (where R is Rydberg's constant)

When the electron in a hydrogen atom jumps from the second orbit to the first orbit , the wavelength of the radiation emitted is lamda . When the electron jumps from the third orbit to the first orbit , of the same atom , the wavelength of the emitted radiation would be

An electron transits for n^(th) orbit to ground in a hydrogen-like atom (Z = 11). The wavelength of emitted radiation, lambda is equal to the de Broglie wavelength of electron in n^(th) orbit. Choose the correct options.

If, an electron in hydrogen atom jumps from an orbit of lelvel n=3 to an orbit of level n=2, emitted radiation has a freqwuency (R= Rydbertg's contant ,c = velocity of light)

A2Z-ATOMIC PHYSICS-Atomic Spectrum
  1. Number of spectral lines in hydrogen atom is

    Text Solution

    |

  2. The wavelength of radiation emitted is lambda(0) when an electron jump...

    Text Solution

    |

  3. If lambda(max) is 6563 Å, then wave length of second line of Balmer se...

    Text Solution

    |

  4. If R is the Rydberg's constant for hydrogen the wave number of the fir...

    Text Solution

    |

  5. The first member of the paschen series in hydrogen spectrum is of wave...

    Text Solution

    |

  6. The ratio of the largest to shortest wavelength in Lyman series of hyd...

    Text Solution

    |

  7. The ratio of the longest to shortest wavelength in Brackett series of ...

    Text Solution

    |

  8. The ratio of minimum to maximum wavelength in Balmer series is

    Text Solution

    |

  9. Which of the following is true for number of spectral lines in going f...

    Text Solution

    |

  10. The wavelength of yellow line of sodium is 5896 Å. Its wave number wil...

    Text Solution

    |

  11. The first line in the Lyman series has wavelength lambda. The waveleng...

    Text Solution

    |

  12. Four lowest energy levels of H-atom are shown in the figure. The numbe...

    Text Solution

    |

  13. Whenever a hydrogen atom emits a photon in the Balmer series

    Text Solution

    |

  14. The shortest wavelength in the Lyman series of hydrogen spectrum is 91...

    Text Solution

    |

  15. Taking Rydberg's constant R(H) = 1.097 xx 10^(7)m first and second wav...

    Text Solution

    |

  16. In the spectrum of hydrogen atom, the ratio of the longest wavelength ...

    Text Solution

    |

  17. The energy of the highest enegry photon of Blamer series of hydrogen s...

    Text Solution

    |

  18. An electron changes its position from orbit n = 4 to the orbit n = 2 o...

    Text Solution

    |

  19. The energy of electron in the nth orbit of hydrogen atom is expressed ...

    Text Solution

    |

  20. In an experiment for positive ray analysis with Thomson method, two id...

    Text Solution

    |