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Photoelectric effect supports quantum na...

Photoelectric effect supports quantum nature of light because :

A

there is minimum frequency of light below which no photoelectrons electrons are emitted

B

even when a metal surface is fairly illustrated , the photoelectrons leave the surface immediately

C

electric charge of photoelectrons is quantised

D

none of these

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The correct Answer is:
A
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Photoelectric effect supports quantum nature fo light because :

photoelectric effect supports quantion nuture of light because

Assertion : Photoelectric effect supports the quantum nature of light. Reason : Photoelectric emission is instantaneous.

Assertion: Photoelectric effect supports the quantum nature of light. Reason : Electric charge of photoelectrons is quantised.

In photoelectric effect

In photoelectric effect

Statement-1 : Photoelectric effect supports the particle nature of light. That means light is not a wave in this case. Statement-2 : The particle nature and the wave nature of light coexist, what we feel is the nature that is dominating at a particular situation.

Assertion : The threshold frequency of photoelectric effect supports the particle nature of light. Reason : If frequency of incident light is less than the threshold frequency, electrons are not emitted from metal surface.

In photoelectric effect,

NIKITA PUBLICATION-ELECTRONS AND PHOTONS -MCQs
  1. In photoelectric effect, the number of photoelectrons emitted is propo...

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  2. A metallic surface ejects electrons when hit by green light but none w...

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  3. Photoelectric effect supports quantum nature of light because :

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  4. The strength of the photoelectric current depends upon

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  5. The threshold wavelength for photoelectric emission from a material ...

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  6. The frequency and the intensity of a beam of light falling on the surf...

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  7. In photoelectric effect the slope of straight line graph between stopp...

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  8. In photoelectric effect , photocurrent

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  9. The photoelectron emitted from a metal surface are such that their vel...

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  10. By increasing the intensity of incident light on the surface of a meta...

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  11. When a given electromagnetic radiation illuminates the metal surface ,...

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  12. Photoelectrons are emitted by a metal surface only when

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  13. The electrons are emitted in a photoelectric effect from a metal surfa...

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  14. Photo electric effect is the phenomenon in which

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  15. In the photoelectric effect the velocity of the ejected electrons depe...

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  16. The stopping potential as a function of frequency of incident radiatio...

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  17. Photoelectric effect is explained by

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  18. Maximum kinetic energy (E(k)) of a photoelectron varies with the frequ...

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  19. In order to increase the kinetic energy of ejected photoelectrons , th...

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  20. The phenomenon of photoelectric emission was discovered in 1887 by

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