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A beam of light has an power of 144 W eq...

A beam of light has an power of 144 W equally distributed among three wavelengths of 4100`Å`, 4960`Å` and 6200Å. The beam is incident at an angle of incidence of 60° on an area of `1 cm^(2)` of a clean sodium surface, having a work function of 2.3 eV.Assuming that there is no loss of light by reflection and that each energetically capable photon ejects a photoelectron, find the saturation photocurrent. (Take `h c//e = 12400 eVÅ`)

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PHYSICS GALAXY - ASHISH ARORA-PHOTOELECTRIC EFFECT AND MATTER WAVES-Numerical MCQs
  1. If a hydrogen atom at rest, emits a photon of wavelength lambda, the r...

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  2. A point source of radiation of power P is placed on the axis of comple...

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  3. A beam of light has an power of 144 W equally distributed among three ...

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  4. The work function of a substance is 4.0 eV. The longest wavelength of...

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  5. When a metallic surface is illuminated with monochromatic light of wav...

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  6. In a photoelectric experiment, with light of wavelength lambda, the fa...

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  7. The work function of a certain metal is (hC)/lambda(0). When a monochr...

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  8. Radiation of frequency 1.5 times the threshold frequency is incident o...

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  9. The maximum kinetic energy of photoelectrons emitted from a surface wh...

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  10. When a certain metallic surface is illuminated with mono chromatic lig...

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  11. In the photoelectric experiment, if we use a monochromatic light, the ...

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  12. The eye can detect 5xx10^(4) photons (m^2s)^(-1) of green light (lamda...

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  13. A metal whose work function is 3.3eV is illuminated by light of wavele...

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  14. In Q 28, the maximum energy of photoelectrons is:

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  15. In Q.28, what is the stopping potential?

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  16. A point source of radiation power P is placed on the x-axis of an idea...

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  17. A sensor is exposed for time t to a lamp of power P placed at a distan...

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  18. The de-Broglie wavelength of an electron moving with a velocity 1.5 xx...

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  19. Monochromatic light of frequency v(1) irradiates a photocell and the s...

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  20. An electromagnetic radiation of frequency 3 xx 10^(15) cycles per seco...

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