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A metal surface of work function 1.07 eV...

A metal surface of work function `1.07 eV` is irradiated with light of wavelength `332 nm`. The retarding potential required to stop the escape of photo - electrons is

A

4.81 eV

B

3.74 eV

C

2.66 eV

D

1.07 eV

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AAKASH INSTITUTE-DUAL NATURE OF RADIATION AND MATTER -ASSIGNMENT SECTION A. Objective (Only one answer)
  1. Which of the following statements is not correct ?

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  2. If we express the energy of a photon in KeV and the wavelength in angs...

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  3. A metal surface of work function 1.07 eV is irradiated with light of w...

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  4. The work function of a metal is 4.2 eV , its threshold wavelength will...

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  5. The work function of metal is 1 eV. Light of wavelength 3000 Å is inc...

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  6. Ultraviolet light of 6.2 eV falls on an aluminium surface (work functi...

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  7. The work function for tungsten and sodium are 4.5 eV and 2.3 eV respec...

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  8. The work function of a metallic surface is 5.01 eV. The photo - electr...

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  9. A radio transmitter operates at a frequency of 880 kHz and a power of ...

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  10. The photo-electrons emitted from a surface of sodium metal are such th...

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  11. A photo cell is receiving light from a source placed at a distance of ...

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  12. Stopping potential for photo electrons

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  13. The maximum wavelength of radiation that can produce photoelectric eff...

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  14. Assuming photoemission to take place , the factor by which the maximum...

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  15. The stopping potential V for photoelectric emission from a metal surfa...

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  16. In an experiment on photoelectric effect the frequency f of the incide...

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  17. If the work function of a metal is 'phi' and the frequency of the inci...

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  18. The threshold frequency for a metallic surface correponds to an energy...

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  19. Two identical photocathodes receive light of frequencies f1 and f2. If...

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  20. Specific heat of water is 4.2 J//g.^(@)C. If light of frequency 3 xx 1...

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