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How many photons are emitted per second ...

How many photons are emitted per second by a 5mW laser source operating at 632.8nm?

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How many photons are emitted per second by a 5m W laser source operating at 632.8nm?

How many photons are emitted per second by a 5 mW laser operating at 620 nm ?

Knowledge Check

  • How many photons are emitted per second by a 5 mW laser source operating at 632.8 nm?

    A
    `1.6xx10^(16)`
    B
    `1.6xx10^(13)`
    C
    `1.6xx10^(10)`
    D
    `1.6xx10^(3)`

  • How many photons are emitted by a laser source of 5 xx 10^(-3) W operating at 632.2 nm in 2 second (h = 6.63 xx 10^(-34)Js) ?

    A
    `3.2 xx 10^(16)`
    B
    `1.6 xx 10^(16)`
    C
    `4 xx 10^(16)`
    D
    None of these

  • How many alpha particles are emitted per second by 1 microgram of radium

    A
    `3.62 xx 10^(4)//s`
    B
    `0.362 xx 10^(4)//s`
    C
    `362 xx 10^(4)//s`
    D
    `36.2 xx 10^(4)//s`

    • Similar Questions

    Explore conceptually related problems

    Find the number of photons emitted per second by a 25 watt source of monochromatic light of wavelength 6000Å .

    Find the number of photons emitted per second by a MW transmitter of 10 kW power emitting radiowaves of wavelength 500 m .

    (a) Calculate the momentum of a photon of light of wavelength 500 nm. (b) Find the number of photons emitted per second by a 25 W sourse of monochromatic light of wave length 600 nm. (c) How many photons per second does a one watt bulb emit if its efficiency is 10% and the wavelength of light emitted is 500 nm? (d) Monochromatic light of wavelength 300 nm is incident normally on a surface of area 4 cm^(2) . If the intensity of light is 150 m W//m^(2) , determine the rate at which photons strike the surface.

    The number of photons emitted per second by a 60 W source of monochromatic light of wavelength 663 nm is: (h=6.63xx10^(-34)Js )

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

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