Home
Class 12
PHYSICS
The number of photons emitted by a 60 W ...

The number of photons emitted by a 60 W bulb per second, if 10% of the electrical energy supplied to an incandescent light bulb is radiated as visible light, is

A

`1.8xx10^19`

B

`1.8xx10^16`

C

`1.8xx10^11`

D

`1.8xx10^21`

Text Solution

Verified by Experts

The correct Answer is:
1
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION B.Objective (Only one answer)|6 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION C. Objective (More than one answer)|4 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE|Exercise Try Yourself|41 Videos
  • CURRENT ELECTRICITY

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION-J|10 Videos
  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE|Exercise SECTION -J(Aakash Challengers Questions)|5 Videos

Similar Questions

Explore conceptually related problems

Calculate the number of photons emitted by a 60 W bulb per second, if 10% of the electrical energy supplied to an incandescent light bulb is radiated as visible light.

A light bulb is an incandescent source of light. A light bulb emits light

If 10% of the energy supplied to an incandescent light bulb is radiated as visible light, how many visible light photons are emitted by 200watt bulb? Assume wavelength of all visible photons to be 5000Å. Given h=6.6xx10^(-34)Js .

Only a fraction of the electrical energy supplied to a tungsten light bulb is converted into visible light. If a 100 W light bulb converts 20% of the electrical energy into visible light (lambda=662.6nm) , then the number of photons emitted by the bulb per second is

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. Wavelengths of sodium light =590nm.

Calculate no. of photons emitted by 60W bulb in 10 hours that produces light of wavelength 6.626 Å

The number of photons emitted per second by a 62W source of monochromatic light of wavelength 4800 A^(@) is

Two bulbs 'A' and 'B' emit red light and yellow light at 8000 "Å" and 4000 "Å" respectively. The number of photons emitted by both the bulbs per second is the same. If the red bulb is labelled as 100 watts, find the wattage of the yellow bulb.

Calculate the no. of photons emitted by 60 watt bulb in 10 hrs. When light of wavelength 6000Å is emitted by it.

The number of photons of wavelength 540 nm emitted per second by an electric bulb of power 100 W is (taking h = 6 xx 10^(-34) sec )

AAKASH INSTITUTE-DUAL NATURE OF RADIATION AND MATTER -ASSIGNMENT SECTION A. Objective (Only one answer)
  1. Two sources A and B have same power . The wavelength of radiation of A...

    Text Solution

    |

  2. The work function of a certain metal is 2.3 eV. If light of wave numbe...

    Text Solution

    |

  3. When the electromagnetic radiations of frequencies 4 xx 10^(15) Hz and...

    Text Solution

    |

  4. If the velocity of an electron is doubled, its de-Broglie frequency wi...

    Text Solution

    |

  5. The duration of a laser pulse is 10^(-8) s. The uncertainly in its ene...

    Text Solution

    |

  6. A proton and an alpha particle are accelerated through the same potent...

    Text Solution

    |

  7. How many photons are emitted by a laser source of 5 xx 10^(-3) W opera...

    Text Solution

    |

  8. The number of photons emitted by a 60 W bulb per second, if 10% of the...

    Text Solution

    |

  9. The momentum of a photon having energy equal to the rest energy of an ...

    Text Solution

    |

  10. A perfectly reflecting solid hemisphere of radius R is placed in the p...

    Text Solution

    |

  11. Find the ratio of de Broglie wavelength of molecules of hydrogen and h...

    Text Solution

    |

  12. A particle which has zero rest mass and non - zero energy and momentum...

    Text Solution

    |

  13. Dual Nature Of Electromagnetic Radiation

    Text Solution

    |

  14. An electron of mass m when accelerated through a potential difference ...

    Text Solution

    |

  15. If an electron and a photon propagate in the form of waves having the...

    Text Solution

    |

  16. The de - Broglie wavelength of a neutron at 27 ^(@) C is lambda. What ...

    Text Solution

    |

  17. The wavelength of the matter wave is independent of

    Text Solution

    |

  18. The graph between intensity of light falling on a metallic plate (l) w...

    Text Solution

    |

  19. A point source of light is used in an experiment on photoelectric effe...

    Text Solution

    |

  20. From the figure describing photoelectric effect we may infer correctly...

    Text Solution

    |