Home
Class 11
PHYSICS
The momentum of a photon is 2 xx 10^(-16...

The momentum of a photon is `2 xx 10^(-16) gm - cm//sec`. Its energy is

A

`0.61xx10^-26 erg`

B

`2.0 xx10^-26 erg`

C

`6xx10^-6 erg`

D

`6xx10^-8 erg`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTRONS AND PHOTONS

    TARGET PUBLICATION|Exercise Evaluation Test|19 Videos
  • ELECTRONS AND PHOTONS

    TARGET PUBLICATION|Exercise Critical thinking|22 Videos
  • COMMUNICATION SYSTEMS

    TARGET PUBLICATION|Exercise Evaluation Test|15 Videos
  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise EXCERCISE|156 Videos

Similar Questions

Explore conceptually related problems

The momentum of a photon is 3.3xx10^(-29) kg-m/s. Its frequency will be

The energy of a photon is 10 xx 10^-19J .Calculate its wavelength.

The measurement of the electron position is associated with an uncertainty in momentum, which is equal to 1 xx 10^-18 g cm s^-1 . The uncertainty in electron velocity is __________. (mass of an electron is 9 xx 10^-28 g )

If the energy of a photon corresponding to a wavelength of 6000 Å is 3.2 xx 10^(-19) J , the photon energy for a wavelength of 4000 Å will be

If wavelength of photon is 2.2 xx 10^-11m , h = 6.6 xx 10^-34 Js , then momentum of photon is_____.

A granite rod of 60 cm length is clamped at its middle point and is set into longitudinal vibrations. The densit of grantite is 2.7 xx 10^(3) kg// m^(3) and its Young's modulus is 9.27 xx 10^(10) Pa. WHat will be the fundamental frequency of the longitudinal vibrations?

The moment of a magnet (15 cm xx 2 cm xx 1 cm) is 1.2 Am^2 .What is its intensity of ,magnetisation?

If E and P are the energy and the momentum of a photon respectively,then on reducing the wavelength of photon

TARGET PUBLICATION-ELECTRONS AND PHOTONS-Competitive Thinking
  1. The momentum of a photon is 3.3xx10^(-29)kg-m/s. Its frequency will b...

    Text Solution

    |

  2. A photon of wavelength 4400 Å is passing through vaccum. The effective...

    Text Solution

    |

  3. The momentum of a photon is 2 xx 10^(-16) gm - cm//sec. Its energy is

    Text Solution

    |

  4. If the energy of a photon corresponding to a wavelength of 6000 Å is ...

    Text Solution

    |

  5. If we express the energy of a photon in KeV and the wavelength in angs...

    Text Solution

    |

  6. A metal surface of work function 1.07 eV is irradiated with light of w...

    Text Solution

    |

  7. The work function of metal is 1 eV. Light of wavelength 3000 Å is inc...

    Text Solution

    |

  8. Energy from the sun is recived on earth at the rate of 2 cal per cm^(2...

    Text Solution

    |

  9. when a monochromatic point source of light is at a distance 0.2 m from...

    Text Solution

    |

  10. When a metal surface is illuminated by light wavelengths 400 nm and 25...

    Text Solution

    |

  11. The velocity of the most energetic electrons emitted from a metallic s...

    Text Solution

    |

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

    Text Solution

    |

  13. Ultraviolet light of wavelength 300nn and intensity 1.0Wm^-2 falls on ...

    Text Solution

    |

  14. The number of photons falling per second on a completely darkened plat...

    Text Solution

    |

  15. Photoelectric emission is observed from a metallic surface for frequen...

    Text Solution

    |

  16. A photoelectric surface is illuminated successively by monochromatic l...

    Text Solution

    |

  17. Two identical photo-cathodes receive light of frequencies f1 and f2. ...

    Text Solution

    |

  18. A metal surface is illuminated by light of two different wavelengths 2...

    Text Solution

    |

  19. A photon of energy E ejects a photoelectron from a metel surface whose...

    Text Solution

    |

  20. Light of wavelength lambda(A) and lambda(B) falls on two identical met...

    Text Solution

    |