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What are different methods to release el...

What are different methods to release electrons ?

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i. Thermionic emission, Photoelectric emission, Field emission, Secondary emission.
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NEW JOYTHI PUBLICATION-DUAL NATURE OF RADIATION AND MATTER -EVALUATION QUESTIONS AND ANSWERS
  1. What are different methods to release electrons ?

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  2. What happens when a negative potential is applied to the anode?

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  3. In Photo electric effect, What happens when the negative potential is ...

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  4. What happens if intensity of light is increased, when the frequency is...

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  5. What happens to the energy of the photon incidenting on metal surface?

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  6. If radiation possesses dual nature, what is the nature of matter? Just...

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  7. How can you increase KE and intensity of electron beam?

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  8. The figure below represents the variation of current with potential fo...

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  9. The size of the bacteria can be magnified 60,0000 times using an elect...

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  10. a. Name the experiment which establishes the wave nature of moving ele...

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  11. Pick the odd one out.

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  12. Classify the following properties of the waves into de Broglie wave, e...

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  13. Pick the odd one out Figure shows results of an experiment involvin...

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  14. Fill in the blanks.

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  15. Match the following

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  16. It has been determined experimentally that when light falls on a metal...

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  17. a. Draw the graph showing the variation of potential with frequency of...

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  18. An image of the sun is formed on the metal surface of the photoelectri...

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  19. All the photoelectrons are not emitted with same energy. Give reason.

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  20. Light is incident on the cathode of a photocell and the stopping volt...

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