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The ratio of number of photoelectrons ej...

The ratio of number of photoelectrons ejected to the number of the photons falling on a metal surface is..........than.......... .

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PRADEEP-DUAL NATURE OF RADIATION AND MATTER-Exercise
  1. The minimum energy required by an electron to..........form the metal ...

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  2. The maximum kinetic energy of emitted photoelectrons depends on the......

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  3. The ratio of number of photoelectrons ejected to the number of the pho...

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  4. For given photosenstive material, the photoelectric current is...........

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  5. An increase in the frequency of the incident light.............the vel...

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  6. The minimum energy required to ejected an electron from the surface of...

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  7. In photoelectric effect the energy of the free electron does not depen...

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  8. Photon is not a..........but it is a.......... .

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  9. The velocity of photons different media is............. .

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  10. The intensity of light depends upon the.........present in light.

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  11. The momentum of a photon of energy E is............and of wavelength l...

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  12. De-Broglie wave are associated with a moving particle irrespective of....

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  13. The de-broglie wavelength of a photon of an electromagnetic radiation ...

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  14. A photon and electron have got same de-Broglie wavelength. Total energ...

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  15. The expression for de-Broglie wavelength of an electron moving under a...

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  16. The main aim of Davisson-Germer experiment is to verify............ .

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  17. Given in fig. is the graph between frequency v of the incident light a...

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  18. For photoelectric effect in sodium, fig. shows the plot of cut-off vol...

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  19. When light of wavelength 400nm is incident on the cathode of photocell...

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  20. Radiation of a certain wavelength causes electrons with a maximum kine...

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