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The stopping potential of the photocell ...

The stopping potential of the photocell is independent of

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At the stopping potential

In an experiment on the photo-electric effect Singly ionized helium is excited electronically to different energy levels. The light emitted by ionised helium is incident on photo-electric plate in a photocell. When helium is excited to fourth energy level, then the observed stopping potential of the photocell is found to be five times the stopping potential measured when the photoelectrons are produced by using light emitted by hydrogen atom, excited to the third energy level. Determine the work function of the material of the photo-electric plate.

The stopping potential (V_(0))

Stopping potential for photoelectrons

At stopping potential, the photoelectrons have

What is stopping potential?

Stopping potential for photo electrons

Monochromatic light of frequency v_(1) irradiates a photocell and the stopping potential is found to be V_(1) . What is the new stopping potential of the cell if it irradiated by monochromatic light of frequency v_(2) ?

Monochromatic light of frequency f_(1) incident on a photocell and the stopping potential is found to be V_(1) . What is the new stopping potential of the cell if it is radiated by monochromatic light of frequency f_(2) ?

NARAYNA-DUAL NATURE OF RADIATION AND MATTER-C. U. Q
  1. A milliammeter in the circuit of a photocell measures

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

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  3. The stopping potential of the photocell is independent of

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

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

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  6. Which conservation law is obeyed in Einstein's photo electric equation...

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  7. In photo electric effect, the photo electric current

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  8. The photoelectric current can be increased by

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

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

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  11. The electron behaves as waves because they can

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  12. A non-monochromatic light is used in an experiment on photoelectric ef...

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  13. The incident photon involed in the photoelectric effect experiment

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  14. In a photoelectric experiment , the maximum velocity of photoelectric ...

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  15. Number of electrons emitted by a surface exposed to light is directly ...

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

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  17. When orange light falls on a photo sensitive surface the photocurrent ...

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  18. When the amplitude of the light wave incident on a photometal sheet is...

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  19. Which of the following is dependent on the intensity of incident radia...

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

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