Home
Class 12
PHYSICS
The radiation emitted when an electron j...

The radiation emitted when an electron jumps from `n = 3 to n = 2` orbit in a hydrogen atom falls on a metal to produce photoelectron. The electron from the metal surface with maximum kinetic energy are made to move perpendicular to a magnetic field of `(1//320) T` in a radius of `10^(-3) m`. Find (a) the kinetic energy of the electrons, (b) Work function of the metal , and (c) wavelength of radiation.

A

1.03eV

B

1.89eV

C

0.86eV

D

2.03 eV

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 45

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NTA NEET SET 47

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

What is the energy emitted when an electron jumps froms second orbit to first orbit in a hydrogen atom ?

The frequency of radiations , emitted when the electron falls , from n=4 to n=1 in a hydrogen , atom

The amount of energy emitted if electron falls from n = 3 to n = 2 , in hydrogen atom is

the radiation emitted when an electron jumps from n=4 to n=3 in a lithium atom ( z=3 ) fall on a metal surface to produce photoelectron , when the photoelectron with maximum Kinetic energy are made to move perpendicular to a magnetic field of 2xx10^(-4)T , it traces a circular path of radius sqrt(9.1/(1.6))cm , [RhC=13.6eV] (mass of electron= 9.1xx10^(-31)kg)

Calculate the energy and frequency of the radiation emitted when an electron jumps from n=3 to n=2 ina hydrogen atom.

When light falls on a metal surface , the maximum kinetic energy of the emitted photo - electrons depends upon

In a hydrogen atom, ultraviolet radiations are emitted when the electron jumps from

The maximum number of photons emitted when an electron jumps from an energy level n=5 to n=1 is s

NTA MOCK TESTS-NTA NEET SET 46-PHYSICS
  1. A projectile is projectile with velocity kv(e) in vertically upward di...

    Text Solution

    |

  2. Which of the following quantities are always positive in a simple har...

    Text Solution

    |

  3. A body is executing S.H.M. when its displacement from the mean positio...

    Text Solution

    |

  4. Consider the equations P=Lim(/\srarr0)F/(/\S) and P1-P2=rhogz In a...

    Text Solution

    |

  5. A water drop is divided into 8 equal droplets. The pressure difference...

    Text Solution

    |

  6. Moment of inertia of a body depends upon

    Text Solution

    |

  7. The two diagrams show the situation before and after a collision betwe...

    Text Solution

    |

  8. An alpha - particle after passing through a potential difference of V...

    Text Solution

    |

  9. Which of the following series fall in the visible range of electromagn...

    Text Solution

    |

  10. The activity of a sample of a radioactive meterial is A1 , at time t1 ...

    Text Solution

    |

  11. The radiation emitted when an electron jumps from n = 3 to n = 2 orbi...

    Text Solution

    |

  12. When the photons of energy hv fall on a photosensitive metallic surfac...

    Text Solution

    |

  13. Input waveforms A and B as shown in Fig-l are applied to the combinati...

    Text Solution

    |

  14. To get an output 1 from the circuit shown in the figure, the input mus...

    Text Solution

    |

  15. For a transistor the value of alpha is 0.9. beta value is

    Text Solution

    |

  16. A common emitter transistor amplifier has a current gain of 50. If the...

    Text Solution

    |

  17. A 90^@ corner is made from a transparent optical material with a refr...

    Text Solution

    |

  18. A crown glass prism of refracting angle 8^(@) is combined with a flint...

    Text Solution

    |

  19. An unpolarised beam of intensity I(0) is incident on a pair of nicols ...

    Text Solution

    |

  20. A slit of width a is illuminiated by white light. The first diffractio...

    Text Solution

    |