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If the work function of two metals X and...

If the work function of two metals X and Y are 4.17 eV and `8.24xx10^(-19)` J respectively , then for which metal lesser amount of energy will be required to emit an electron ?

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MODERN PUBLICATION-DUAL NATURE OF RADIATION AND MATTER -Revision Exercises (Short Answer Questions)
  1. (a) State the laws of photoelectric emission.

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  2. Define 'threshold frequency ' and ' work function ' of a metal . Show ...

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  3. If the work function of two metals X and Y are 4.17 eV and 8.24xx10^(-...

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  4. The stopping potential (v0) varies linearly with the frequency (v)of ...

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  5. When light off frequency v1 is incident on a photosensitive surface ,...

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  6. Light of intensity I and frequency nu is incident on a photosensitive ...

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  7. (a) What is photo electric effect ? State the laws of photo - electric...

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  8. The maximum kinetic energy of photoelectron is doubled when the wavele...

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  9. Derive de Broglie wave equation for material particles. (b) Why does...

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  10. The following graph shows the variation of photoelectric current for a...

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  11. (b) Calculate de Broglie wavelength for an electron moving with a spee...

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  12. The graph shows variation of stopping potential V(0) versus frequency ...

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  13. Draw a plot showing the variation of photoelectric current with collec...

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  14. A proton and an alpha particle are accelerated through same potential ...

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  15. If an em wave of wavelength lambda is incident on a photosensitive sur...

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  16. Write the three characteristic features in photoelectric effect which...

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  17. When a given photosensitive material is irradiated with light of frequ...

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  18. Draw and explain the graph showing the variation of stopping potential...

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  19. (a) State three important properties of photons which describe the par...

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  20. In a plot of photoelectric current versus anode potential, how does ...

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