Home
Class 12
PHYSICS
The energy of a photon in eV of waveleng...

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

A

`E(eV) =(1242)/(lambda(nm))`

B

`E(eV) =(1000)/(lambda(nm))`

C

`E(eV) =(500)/(lambda(nm))`

D

`E(eV) =(250)/(lambda(nm))`

Text Solution

Verified by Experts

The correct Answer is:
A

NA
Promotional Banner

Topper's Solved these Questions

  • PHOTOELECTRIC EFFECT

    CP SINGH|Exercise EXERCISES|73 Videos
  • OPTICAL INSTRUMENTS

    CP SINGH|Exercise EXERCISES|63 Videos
  • REFLECTION OF LIGHT

    CP SINGH|Exercise EXERCISES|67 Videos

Similar Questions

Explore conceptually related problems

The energy of a photon of wavelength lambda is given by

The energy of a photon (in ev) of wavelength 5000 Å will be

The momentum of a photon of wavelength lambda is

Momentum of a photon of wavelength lambda is

Momentum of a photon of wavelength lambda is :

The rest mass of a photon of wavelength lambda is

The energy of a photon of wavelength 390 nm is nearly

The mass of photon of wavelength lambda is given by

CP SINGH-PHOTOELECTRIC EFFECT-EXERCISES
  1. The equation E=pc is valid

    Text Solution

    |

  2. Let p and E denote the linear momentum and energy of a photon. If the ...

    Text Solution

    |

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

    Text Solution

    |

  4. If 5% of the energy supplied to a bulb is irradiated as visible light,...

    Text Solution

    |

  5. A hydrogen atom moving at a speed v absorbs a photon of wavelength 122...

    Text Solution

    |

  6. Let (nr) and (nb) be respectively the number of photons emitted by a r...

    Text Solution

    |

  7. A beam of white light is incident normally on a plane surface absorbin...

    Text Solution

    |

  8. Which of the following is correct regarding photo-electric effect? (...

    Text Solution

    |

  9. Which of the following is correct regarding Einstein photo-electric ef...

    Text Solution

    |

  10. As the intensity of incident light increases

    Text Solution

    |

  11. The number of photo - electrons emitted per second from a metal surfac...

    Text Solution

    |

  12. Photons of frequency v fall on a metal surface for which the thershold...

    Text Solution

    |

  13. Which of the following statements about photoelectric effict is/are fa...

    Text Solution

    |

  14. When stopping potential is applied in an experiment on photoelectric e...

    Text Solution

    |

  15. In photoelectric effect

    Text Solution

    |

  16. A metallic surface ejects electrons when exposed to green light of int...

    Text Solution

    |

  17. Lights of two different frequencies whose photons have energies 1 and ...

    Text Solution

    |

  18. Two identical photocathodes receive light of frequency f(1) andf(2) if...

    Text Solution

    |

  19. Radiation of wavelength lambda in indent on a photocell . The fastest ...

    Text Solution

    |

  20. When a certain metallic surface is illuminated with monochromatic ligh...

    Text Solution

    |