Home
Class 12
PHYSICS
Monochromatic radiation emitted when ele...

Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited to the ground state irradiates a photosensitive material. The stopping potential is measured to be `3.57V`. The threshold frequency of the material is

A

` 4 xx 10^(15) ` Hz

B

` 5 xx 10^(15)` Hz

C

` 1.52 xx 10^(15)` Hz

D

` 2.5 xx 10^(15) ` Hz

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PHOTOELECTRIC EFFECT

    MOTION|Exercise EXERCISE -3 (PREVIOUS YEAR PROBLEMS (JEE MAIN))|12 Videos

  • PHOTOELECTRIC EFFECT

    MOTION|Exercise EXERCISE-2 (OBJECTIVE QUESTIONS (NEET))|17 Videos

  • OPTICS

    MOTION|Exercise Exercise|45 Videos

  • PROJECTILE MOTION

    MOTION|Exercise EXERCISE-3 (SECTION-B)|8 Videos

Similar Questions

Explore conceptually related problems

Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited to the ground state irradiates a photosensitive material. The stopping potential is measured material. The threshold frequency of the material is

When an electron in hydrogen atom is taken from fourth excited state to ground state

when a hydrogen atom is raised from the ground state to an excited state

When a hydrogen atom is raised from the ground state to an excited state

When a hydrogen atom is excited from ground state to first excited state then

When a hydrogen atom is excited from ground state to first excited state, then

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

MOTION-PHOTOELECTRIC EFFECT -EXERCISE - 3 SECTION -A (Previous Year Problems (NEET ))
  1. The work functions for metals A, B and C are respectively 1.92 eV, 2....

    Text Solution

    |

  2. Monochromatic light of wavelength 667 nm is produced by a helium neon ...

    Text Solution

    |

  3. Light of two different frequencies whose photons have energies 1eV and...

    Text Solution

    |

  4. In photoelectric emission process from a metal of work function 1.8 eV...

    Text Solution

    |

  5. The threshold frequency for a photosensitive metal is 3.3 xx 10^(14) H...

    Text Solution

    |

  6. An electron in the hydrogen atom jumps from excited state n to the gro...

    Text Solution

    |

  7. Monochromatic radiation emitted when electron on hydrogen atom jumps f...

    Text Solution

    |

  8. A modern 200 W sodium street lamp emits yellow light of wavelength 0.6...

    Text Solution

    |

  9. A alpha -parhticle moves in a circular path of radius 0.83 cm in th...

    Text Solution

    |

  10. An electrons of a stationary hydrogen aton passes form the fifth enegr...

    Text Solution

    |

  11. Threshold frequency of a metal is 5xx10^(13)s^(-1) upon which 1xx10^(1...

    Text Solution

    |

  12. The wavelength lambda(e ) of an electron and lambda(p) of a photon of...

    Text Solution

    |

  13. For photoelectric emission from certain metal the cut - off frequency ...

    Text Solution

    |

  14. When the energy of the incident radiation is increased by 20 % , kinet...

    Text Solution

    |

  15. When a metallic surface is illuminated with radiation of wavelength la...

    Text Solution

    |

  16. An electron of mass m and a photon have same energy E. The ratio of de...

    Text Solution

    |

  17. Photons with energy 5 eV are incident on a cathode C in a photoelectri...

    Text Solution

    |

  18. The photoelectric threshold wavelength of silver is 3250 xx 10^(-10) m...

    Text Solution

    |

  19. An electron of mass m with an initial velocity vec(v) = v(0) hat(i) ...

    Text Solution

    |

  20. When the light of frequency 2 v(0) (where v(0) is threshold frequency)...

    Text Solution

    |