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In photoelectric emission, the velocity ...

In photoelectric emission, the velocity of electrons ejected from near the surface is

A

same as those coming from interior of metal

B

larger than those coming from interior of metal

C

less than those coming from interior of metal

D

none of these

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The correct Answer is:
B
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NIKITA PUBLICATION-ELECTRONS AND PHOTONS -MCQs
  1. The phenomenon of photoelectric emission was discovered in 1887 by

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  2. The velocity of photon is proportional to (where v is frequency)

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  3. In photoelectric emission, the velocity of electrons ejected from near...

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  4. In photoelectric emission, the energy of the emitted electron is

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  5. If the work function of a metal is 'phi' and the frequency of the inci...

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  6. Which of the following is dependent on the intensity of incident radia...

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  7. Photoelectric effect supports

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  8. Threshold wavelength for photoelectric effect on sodium is 5000 Å . It...

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  9. For three different metals A , B and C , photoemission is observed one...

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  10. When light of wavelength 300 nm (nanometre) falls on a photoelectric e...

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  11. Which of the following graphs represents correctly the variations of 0...

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  12. If the radiation is incident on the metallic surface of work function ...

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  13. A metal surface is illuminated by a light of given intensity and frequ...

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  14. The stopping potential for acertain photosensitive metal is Vq when th...

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  15. Einsteins photoelectric equation is

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  16. In photoelectric effect when photons of energy hv fall on a photosensi...

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  17. Einstein's photoelectric equation states that E(k) = h v - phi . In th...

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  18. Radiations of two photon’s energy, twice and ten times the work functi...

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  19. If ultraviolet radiation of 6.2 eV falls of an aluminium surface , the...

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  20. Light of wavelength 3 xx 10^(-7) m is incident on a photosensitive sur...

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