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The photoelectric work function for a me...

The photoelectric work function for a metal surface is 4.125 eV.The cut-off wavelength for this surface :

A

`4125 overset @A`

B

`2,062.5 overset @A`

C

`3,000 overset @A`

D

`6,000 overset @A`.

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MODERN PUBLICATION-UNIT TEST -07-EXERCISE
  1. A source S1 is producing 10^(15) photons s^(-1) of wavelength 5,000 ov...

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  2. Monochromatic light of wavelength 667 nm is produced by a helium neon ...

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  3. The photoelectric work function for a metal surface is 4.125 eV.The cu...

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  4. The work functins for metals,A ,B and C are 1.92 eV,2 eV and 5 eV reps...

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  5. When ultraviolet rays are incident on a metal plate,the photoelectric ...

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  6. A photocell is illuminated by a small bright source placed 1 m away .w...

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  7. A photoelectric cell is illuinated by a point source of light 1 m away...

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  8. A 5 W source emits monochromatic light of wavelength 5,00 overset @A.W...

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  9. As the intensity of incident light incrases:

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  10. Which of the following statements is correct?

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  11. The number of photoelectrons emited for a light of a freqeuency v (hig...

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  12. When monochromatic radition of intensity I falls on a metal surface,th...

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  13. The cathode of a photoelectric cell is hanged,such that the work func...

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  14. Einstien's work on photoelectric effect given support to:

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  15. When photons of energy h v fall on an aluminium plate (of work functio...

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  16. The work function of a surface of a phototsensitve materil is 6.2 eV.T...

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  17. Light of wavleength 5,000 overset @A falls on a photo sensitive plate ...

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  18. Photoelectric work function of a metal is 1 eV.Light of wavelength l...

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  19. The figure shows a plot of photocurrent versus anode potential for a p...

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  20. According to Einstein's photoelectric equation, the graph between kine...

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