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The frequency and the intensity of a bea...

The frequency and the intensity of a beam of light falling on the surface of a photoelectric material are increased by a factor of two. This will

A

increase the maximum kinetic energy of the photoelectrons as well as photoelectric current by a factor of two

B

increase the maximum kinetic energy of photoelectrons and would increase the photoelectric current by a factor of two

C

increase the maximum kinetic energy of photoelectrons by a factor of two and will have no effect on photoelectric current

D

increase the photoelectric current by a factor of two but will have no effect in kinetic energy of emitted electrons

Text Solution

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The correct Answer is:
B
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NIKITA PUBLICATION-ELECTRONS AND PHOTONS -MCQs
  1. The strength of the photoelectric current depends upon

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

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

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

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  5. In photoelectric effect , photocurrent

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

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

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

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  9. Photoelectrons are emitted by a metal surface only when

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

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  11. Photo electric effect is the phenomenon in which

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

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

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  14. Photoelectric effect is explained by

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

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

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

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  18. The velocity of photon is proportional to (where v is frequency)

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  19. In photoelectric emission, the velocity of electrons ejected from near...

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  20. In photoelectric emission, the energy of the emitted electron is

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