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The number of photo - electrons emitted ...

The number of photo - electrons emitted per second from a metal surface increases when

A

The energy of incident photons increases

B

The frequency of incident light increases

C

The wavelength of the incident light increases

D

The intensity of the incident light increases

Text Solution

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The correct Answer is:
D
Intensity `prop` ( No. of photons) `prop` (No. of photoelectrons)
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A2Z-DUAL NATURE OF RADIATION AND MATTER-Photo Electric Effect
  1. The number of photo - electrons emitted per second from a metal surfac...

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  2. As the intensity of incident light increases

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  3. Kinetic energy with which the electrons are emitted from the metal sur...

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  4. The work function of aluminium is 4.2 eV. If two photons , each of ene...

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  5. In photoelectric effect if the intensity of light is doubled then maxi...

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  6. The cathode of a photoelectric cell is changed such that the work func...

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  7. A beam of light of wavelength lambda and with illumination L falls on ...

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  8. Which of the following statements is correct ?

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  9. The stopping potential (V(0))

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  10. If intensity of incident light is increased in photo electric effect t...

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  11. The retarding potential for having zero photo - electron current

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

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  13. A point source of light is used in an experiment on photoelectric effe...

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  14. A photon energy 3.4 eV is incident on a metal having work function 2 e...

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  15. Photons of energy 6 eV are incident on a metal surface whose work func...

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

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  17. When light falls on a metal surface , the maximum kinetic energy of th...

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

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  19. Threshold frequency for a metal is 10^(15) Hz. Light of lambda = 4000 ...

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  20. If in a photoelectric experiment , the wavelength of incident radiatio...

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