Home
Class 12
PHYSICS
Calculate the number of photons emitted ...

Calculate the number of photons emitted in 10 hours by a 60 W sodium lamp `( lambda = 6000Å )`

Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF MATTER AND RADIATION

    BINA LIBRARY|Exercise EXERCISE|68 Videos

  • CURRENT ELECTRICITY

    BINA LIBRARY|Exercise EXERCISE|107 Videos

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT

    BINA LIBRARY|Exercise EXERCISE|101 Videos

Similar Questions

Explore conceptually related problems

Calculate the number of photons emitted per second by a 10 W sodium vapour lamp. Assume that 60% of the consumed energy is converted into light. Wavelength of sodium light = 590 nm.

Calculate the number of moles in 10g of CH_4 .

Calculate the number of moles is 60g NaOH.

Calculate the number of photon emitte per second by a 10 watt Na lamp. Assume 90% of consumed energy converted into light. Wave length of Na lamp 530 nm.

Calculate the energy of a photon of wavelength 6 xx 10^(-5) cm.

A 200 watt bulb emits mono chromatic light of wave lenth 400 nm. Calculate the number of photons emitted per sec by the bulb.

Sodium crystallizes in a body-centred cubic (bcc) unit cell. Calculate the approximate number of unit cells in 9.2g of sodium. (Atomic mass of Na = 23u).

Find the energy in KWh consumed in 10 hours by four devices of power 500W each.

BINA LIBRARY-DUAL NATURE OF MATTER AND RADIATION-EXERCISE
  1. Calculate the number of photons emitted in 10 hours by a 60 W sodium l...

    Text Solution

    |

  2. What is photoelectric emission?

    Text Solution

    |

  3. What is secondary emission?

    Text Solution

    |

  4. What is meant by work function?

    Text Solution

    |

  5. Does work function depend on the frequency of incident radiation?

    Text Solution

    |

  6. Define one electron volt.

    Text Solution

    |

  7. An electron is accelerated through a potential difference of 1000 V. W...

    Text Solution

    |

  8. Find the dimestion of Planck's constant.

    Text Solution

    |

  9. What is thresold frequency?

    Text Solution

    |

  10. What is cut-off or stopping potential?

    Text Solution

    |

  11. What is the momentum of a photon of frequency f and wavelength lamb...

    Text Solution

    |

  12. What is rest mass of photon?

    Text Solution

    |

  13. On what factor does the energy carried by a photon of light depend?

    Text Solution

    |

  14. If maximum K.E. of electron emitted by a photo cell is 4 eV, what is t...

    Text Solution

    |

  15. In what way de - Broglie wavelength lambdaof a particle is related to ...

    Text Solution

    |

  16. How does the maximum K.E. of electron emitted vary with work function ...

    Text Solution

    |

  17. Does work function depend on the frequency of incident radiation?

    Text Solution

    |

  18. How does stopping potential vary on increasing the intensity of incide...

    Text Solution

    |

  19. What is the frequency of radiation whose photon has energy 20 eV?

    Text Solution

    |

  20. The work function of a metal is 3.45 eV. Calculate what should be the ...

    Text Solution

    |

  21. A 100 watt sodium lamp is emitting light of W.L 5890Å . Calculate the ...

    Text Solution

    |