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What is photoelectric effect? Give any t...

What is photoelectric effect? Give any two practical applications of this effect. Write Einstein's photoelectric equation and use it to explain (i) independence of maximum energy of the emitted photoelectrons from intensity of incident light (ii) existence of a threshold frequency of the emitted photoelectrons from intensity of incident light.

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Explain how Einstein's photoelectric equation enables us to understand the (i) linear dependence, of the maximum K.E. of the emitted electrons, on the frequency of the incident radiations (ii) existance of a threshold frequency for a given photoemitter.

According to Einstein's photoelectric equation, the plot of the maximum kinetic energy of the emitted photoelectrons from a metal versus frequency of the incident radiation gives a straight line whose slope

In a photoelectric emission process the maximum energy of the photo - electrons increase with increasing intensity of the incident light .

What is the effect on the velocity of the emitted photoelectrons if the wavelength of the incident light is decreased ?

What is the effect on the velocity of emitted photoelectrons if the wavelength of the incident light is increased ?

What is the effect on the maximum velocity of the emitted electron if the wavelength of the incident light is decreased?

According to Einstein's photoelectric equation , the graph between the kinetic energy of photoelectrons ejected and the frequency of incident radiation is

Maximum kinetic energy of the photoelectrons is independent of the intensity of incident radiation . Give reason.

PRADEEP-DUAL NATURE OF RADIATION AND MATTER-Exercise
  1. What is photoelectric effect? Give any two practical applications of t...

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  2. The photoelectric effect can be explained on the basis of

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  3. Which of the following has minimum stopping potential?

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  4. When radiation is incident on a photoelectron emitter, the potential i...

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  5. Two photons, each of energy 2.5 eV are simultaneously incident on the ...

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  6. The maximum velocity of an electron emitted by light of wavelength lam...

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  7. The photoelectric work function for a metal surface is 4.125 eV. The c...

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  8. The slope of frequency of incident light and stopping potential for a ...

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  9. Threshold wavelength for a metal having work function w(0) is lambda. ...

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  10. The work function for metals A , B and C are respectively 1.92 eV , 2....

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  11. The wavelength of the matter wave is independent of

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  12. If E(1), E(2), E(3), E(4) are the respective kinetic energies of elect...

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  13. What is de-Broglie wavelength assciated with electron moving under a ...

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  14. The minimum energy required by an electron to..........form the metal ...

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  15. The maximum kinetic energy of emitted photoelectrons depends on the......

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  16. The ratio of number of photoelectrons ejected to the number of the pho...

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

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

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

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

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  21. Photon is not a..........but it is a.......... .

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