Home
Class 12
PHYSICS
Monochromatic light frequency 5.0xx10^(1...

Monochromatic light frequency `5.0xx10^(14)` Hz is produced by a laser.The power emitted is 66 W. How many photons per second,on an average ,are emitted by the source?

Text Solution

Verified by Experts

`2xx10^(20)` Photon/second
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    KUMAR PRAKASHAN|Exercise Section-C(NCERT Exemplar solution)(Multiple choice questions(MCQs))|8 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    KUMAR PRAKASHAN|Exercise Section-C (multiple choice questions(more than one options)|5 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    KUMAR PRAKASHAN|Exercise Section-B Numerical from textual Exercise(Numerical From .DARPAN. based on textbook)|11 Videos

  • CURRENT ELECTRICITY

    KUMAR PRAKASHAN|Exercise SECTION [D] MULTIPLE CHOICE QUESTIONS (MCQs) (MCQs ASKED IN BOARD EXAM AND GUJCET)|23 Videos

  • ELECTRIC CHARGES AND FIELDS

    KUMAR PRAKASHAN|Exercise SECTION D MCQS ASKED IN COMPETITIVE EXAMES (MCQS AKSED IN BOARD EXAM AND GUJCET)|14 Videos

Similar Questions

Explore conceptually related problems

Monichromatic light of wavelength 632.8 nm Is produced by a helium-neon laser.The power emitted is 9.42 mW. (b)How many photons per second,on the average ,arrive at a target irradiated by this beam ? (Assume the beam to have uniform cross-section which is less than the target area),and (c )How fast does a hydrogen atom have to travel in order to have the same moementum as that of the photon?

Monochromatic light of frequency 6.0xx10^(14) Hz is produced by a laser. The power emitted is 2.0 xx10^(-3) W. (a) What is the energy of a photon in the light beam? (b) How many photons per second, on an average, are emitted by the source?

Knowledge Check

  • Monochromatic light of frequency 6.0xx10^(14) Hz is produced by a laser.The power emitted is 2.0xx10^(-3) W.How many photons per second,on an average ,are emitted by the source?

    A
    `6xx10^(14)`
    B
    `5xx10^(15)`
    C
    `1.99xx10^(16)`
    D
    `5xx10^(16)`

  • Monochromatic light of frequency 6xx10^(4)Hz is produced by laser. Each photon has an energy = ……. .

    A
    `4xx10^(-19)`
    B
    `6xx10^(14)`
    C
    `4xx10^(-20)`
    D
    `6xx10^(-14)`

  • Monochromatic light of frequency 6.0xx10^(14) Hz is produced by a laser.The power emitted is 2.0xx10^(-3) W. (a)What is the energy of a photon in the light beam?

    A
    `3.98xx10^(-10)J`
    B
    `3.98xx10^(-19)J`
    C
    `3.98xx10^(-48)J`
    D
    `3.98xx10^(48)J`

    • Similar Questions

    Explore conceptually related problems

    Monochromatic light of frequency 6.0xx10^(14) Hz is produced by a laser.The power emitted is 2.0xx10^(-3) W. (a)What is the energy of a photon in the light beam?(b)How many photons per second.on an average ,are emitted by the source?

    Monochromatic light of wavelength 632.8 nm is produced by a helium-neon laser. The power emitted is 9.42 mW. (a) Find the energy and momentum of each photon in the light beam, (b) How many photons per second, on the average, arrive at a target irradiated by this beam? (Assume the beam to have uniform cross-section which is less than the target area), and (c) How fast does a hydrogen atom have to travel in order to have the same momentum as that of the photon?

    1 mole photon having frequency 4.0 xx 10^(14) Hz find energy

    Monochromatic light of frequency 6 times 10^14 Hz is produced by laser. Each photon has an energy=…….

    A laser emit monochromatic light of 6.0xx10^(14)Hz frequency and produce power of 2xx10^(-3) W.No of photon produced per second will be…..

    Home
    Profile