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Ultraviolet radiation in incident on sod...

Ultraviolet radiation in incident on sodium metal.Then visible light is incident.Potential difference is measured in both case.Stopping potential….

A

Will be same for both metals

B

more for ultraviolet radiation

C

more for visible light

D

can not be said.

Text Solution

Verified by Experts

The correct Answer is:
B
`eV_(0)=hf-phi`
Energy of ultraviolet radiation (hf)`gt` energy of visible light
`therefore (V_(0))"ultraviolet" gt(V_(0))"visible"`
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KUMAR PRAKASHAN-DUAL NATURE OF RADIATION AND MATTER-Section-D (multiple choice questions (MCQs)
  1. Maximum kinetic energy of photoelectron emitted is independent of ……

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  2. In two different experiment X-rays are incident on sodium metal and th...

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  3. Ultraviolet radiation in incident on sodium metal.Then visible light i...

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  4. When monochromatic source is kept at distance of 0.2 m from photocell,...

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  5. Maximum speed of electron emitted from metal surface is 5xx10^(6 )ms^(...

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  6. The work function of a metal surface is 4.2 eV. The maximum wavelength...

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  7. Threshold frequency for metal surface is 4xx10^(14) Hz.When radiation ...

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  8. On metal surface radiation of 2000Å and 5000 Å is incident sequentiall...

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  9. Slope of V(0)toV graph shows…..

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  10. Slope of V(0)etoV represent……

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  11. ……potentail on collector w.r.t. emitter for which photo-electric curre...

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  12. In condition of stopping potential value of photo-electric current wil...

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  13. Value of stopping potential depends on……. Of incident light.

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  14. When metal surface with 2.1 eV work function is irridated with photon ...

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  15. When photon of v frequency os incident on photo sensitive surface with...

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  16. ……..cannot be explained by wave theory of light.

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  17. Photo-electric effect show …….nature of radiation.

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  18. Which of the following has same dimension as that of planck's constant...

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  19. Figure shows graph of stopping potential v frequency in experiment of ...

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  20. For photo senstive surface A and B graph of stopping potential versus ...

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