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The work function of a metal is...

The work function of a metal is

A

is different for different metals

B

is the same for all the metals

C

depends on the frequnecy of the light

D

depends on the intensity of the incident light

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The correct Answer is:
A
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NARAYNA-DUAL NATURE OF RADIATION AND MATTER-C. U. Q
  1. Light of wavelength lambda falls on metal having work functions hc//la...

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  2. Emission of electrons in photoelectric effect is possible, if

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  3. The work function of a metal is

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  4. The process of photo electric emission depends on

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  5. The threshold wavelength of lithium is 8000 A^(0) When light of a wave...

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  6. The photo electrons emitted from the surface of sodium metal are

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  7. The necessary condition for photo electric emission is

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  8. At stopping potential, the photo electric current becomes

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  9. In photoelectric effect, stopping potential depends on

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  10. Work function is the energy required

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  11. Threshold wavelenght depends on

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  12. If the work function of a mental is phi(0) then its threshold waveleng...

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  13. The work function of a mental is X eV when light of energy 2X eV is ma...

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  14. If the distance of 100 Watt lamp is increased from a photocell, the sa...

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  15. a source of light in placed at a distance 4m from a photocell and the...

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  16. A milliammeter in the circuit of a photocell measures

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  17. The Einstein photoelectric equation is based upon the conservation of

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  18. The stopping potential of the photocell is independent of

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  19. The maximum energy of emitted photo electrons is measured by

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  20. Three metals have work function in the ratio 2:3:4 Graphs are drawn fo...

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