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Is photoelectric emission possible at al...

Is photoelectric emission possible at all frequencies? Give reason for your answer?

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No. below threshold frequency , photoelectric emission is not possible.
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MODERN PUBLICATION-DUAL NATURE OF RADIATION AND MATTER -Revision Exercises (Very Short Answer Questions)
  1. An electron and a proton are moving with same speed . Which will have ...

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  2. What Is saturation current in photoelectric effect ?

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  3. Is photoelectric emission possible at all frequencies? Give reason for...

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  4. The work function of sodium is 2.3 eV . The threshold wavelength of so...

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  5. An electron and proton are possessing the same amount of kinetic energ...

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  6. What will be the de Broglie wavelength associated with a ball of mass ...

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  7. What would be the de Broglie wavelength of an electron possessing 100 ...

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  8. Plot a graph showing variation of a de Broglie wavelength (lamda) asso...

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  9. Write the expression for the de-Broglie wavelength associated with a c...

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  10. The two lines A and B in fig. show the photo electron of de Broglie wa...

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  11. Two metals a and b have work function 5 eV and 7 eV , respectively . W...

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  12. Ultraviolet light is incident on two photosensitive materials having w...

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  13. What do you mean by photoelectric efficiency ?

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  14. Can photoelectric efficiency be greater than One (1) ?

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  15. The de Broglie wavelength lambda of a particle

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  16. Why are alkali metal surfaces most suited as photo-sensitive surfaces?

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  17. Explain giving reasons for the following : (a) Photoelectric current...

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  18. The stopping potential in an experiment on a photo electric effect is ...

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  19. The energy that should be added to an electron, to reduce its de-Brogl...

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  20. In Davisson - Germer experiment , find the glancing angle if the anlge...

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