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Work function is the energy required...

Work function is the energy required

A

to excite an atom

B

to produce `X`-rays

C

to eject an electron just out of the surface

D

to explode the atom

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The correct Answer is:
C
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NARAYNA-DUAL NATURE-C.U.Q
  1. At stopping potential, the photo electric current becomes

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  2. The stopping potential (V(0))

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  3. Work function is the energy required

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  4. Threshold wavelenght depends on

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  5. If the work function of a mental is then its threshold wavelenght will...

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

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

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

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  9. A milliammeter in the circuit of a photocell measures

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

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  11. The stopping potential of the photocell is independent of

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

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

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  14. The curve between current (i) and potential difference (V) for a phot...

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

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  16. In photo electric effect, the photo electric current

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  17. The photoelectric current can be increased by

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  18. The thresold wavelength for sodium is 5xx10^(-7) m. Photoemission occu...

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  19. If Planck's constant is denoted by h and the charge by e, experiments ...

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  20. The electron behaves as waves because they can

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