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An increase in the frequency of the inci...

An increase in the frequency of the incident light.............the velocity with which photoelectron is ejected.

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increases
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An increase in the frequency of the incident light increase the velocity with which photoelectron is ejected. Explain how?

Increase in the frequency of the incident radiations increases the

Statement-1: Kinetic energy of photoelectrons increases with increases in the frequency of incident radiation Statement-2: The number of photoelectrons ejected increases with increases in intensity of incident radiation.

If the work function of a metal is 'phi' and the frequency of the incident light is 'v' , there is no emission of photoelectron if

Of the following statement about the photoelectric effect, which are true and which are false? (a) The greater the frequency of the incident light is, the greater is the stopping potential. (b) The greater the intensity of the incident light is, the greater is the cutoff frequency. (c) The greater the work function of the target material is, the greater is the stopping potential. (d) The greater the work function of the target material is, the greater is the cutoff frequency. (e) The greater the frequency of the incident light is, the greater is the maximum kinetic energy of the ejected electrons. (f) The greater the energy of the photons is, the smaller is the stopping potential.

As the intensity of incident light increases

If lamda_o and lamda be the threshold wavelength and wavelength of incident light , the velocity of photoelectron ejected from the metal surface is :

Assertion : The kinetic energy of a photoelectron decrease with increases with increase in the wavelength of incident light. Reason : All photoelectrons are not emitted with the same speed because of the range of wavelength in the white light.

PRADEEP-DUAL NATURE OF RADIATION AND MATTER-Exercise
  1. The ratio of number of photoelectrons ejected to the number of the pho...

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  2. For given photosenstive material, the photoelectric current is...........

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  3. An increase in the frequency of the incident light.............the vel...

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  4. The minimum energy required to ejected an electron from the surface of...

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  5. In photoelectric effect the energy of the free electron does not depen...

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  6. Photon is not a..........but it is a.......... .

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  7. The velocity of photons different media is............. .

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  8. The intensity of light depends upon the.........present in light.

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  9. The momentum of a photon of energy E is............and of wavelength l...

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  10. De-Broglie wave are associated with a moving particle irrespective of....

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  11. The de-broglie wavelength of a photon of an electromagnetic radiation ...

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  12. A photon and electron have got same de-Broglie wavelength. Total energ...

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  13. The expression for de-Broglie wavelength of an electron moving under a...

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  14. The main aim of Davisson-Germer experiment is to verify............ .

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  15. Given in fig. is the graph between frequency v of the incident light a...

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  16. For photoelectric effect in sodium, fig. shows the plot of cut-off vol...

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  17. When light of wavelength 400nm is incident on the cathode of photocell...

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  18. Radiation of a certain wavelength causes electrons with a maximum kine...

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  19. The electric field associated with a monochromataic beam of light beco...

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  20. Ultraviolet light of wavelength 800 A and 700 A when allowed to fall ...

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