Class 12 > Samacheer Kalvi - English Medium > Dual Nature of Radiation and Matter

  • Choose the correct answer

    If the mean wavelength of light from sun is taken as 550 nm and its mean power as 3.8 1026W, then the average number of photons received by the human eye per second from sunlight is of the order of


    - a) 1045

    - b) 1042

    - c) 1054

    - d) 1051


1 Answer

  • Correct Answer:

    a) 1045

    Answered on 29/10/2020 at 12:44PM by Thamizh

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Unit 8. Dual Nature of Radiation and Matter
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