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Emission of electrons in photoelectric e...

Emission of electrons in photoelectric effect is possible, if

A

metal surface is highly polished

B

the incident light is of sufficiently high intensity

C

the light is incident at right angles to the surface

D

the incident light is of sufficiently low wavelenght

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The correct Answer is:
D
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NARAYNA-DUAL NATURE OF RADIATION AND MATTER-C. U. Q
  1. In an experiment of photo electric emission for incident light of 4000...

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  2. Light of wavelength lambda falls on metal having work functions hc//la...

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  3. Emission of electrons in photoelectric effect is possible, if

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  4. The work function of a metal is

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  5. The process of photo electric emission depends on

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  6. The threshold wavelength of lithium is 8000 A^(0) When light of a wave...

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  7. The photo electrons emitted from the surface of sodium metal are

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  8. The necessary condition for photo electric emission is

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  9. At stopping potential, the photo electric current becomes

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  10. In photoelectric effect, stopping potential depends on

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  11. Work function is the energy required

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  12. Threshold wavelenght depends on

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  13. If the work function of a mental is phi(0) then its threshold waveleng...

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  14. The work function of a mental is X eV when light of energy 2X eV is ma...

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  15. If the distance of 100 Watt lamp is increased from a photocell, the sa...

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  16. a source of light in placed at a distance 4m from a photocell and the...

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  17. A milliammeter in the circuit of a photocell measures

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  18. The Einstein photoelectric equation is based upon the conservation of

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  19. The stopping potential of the photocell is independent of

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  20. The maximum energy of emitted photo electrons is measured by

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