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Photoelectric effect is described as the...

Photoelectric effect is described as the ejection of electrons from the surface of a metal when:

A

it is heated to a high temperature

B

electrons of suitable velocity impinge on it

C

light of suitable wavelength falls on it

D

it is placed in a strong magnetic field

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The correct Answer is:
C
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NIKITA PUBLICATION-ELECTRONS AND PHOTONS -MCQs
  1. The work function for photoelectric effect

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  2. Photoelectrons emitted from a metallic surface are those which are

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  3. Photoelectric effect is described as the ejection of electrons from th...

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  4. Photo electric effect can be explained only by assuming that light

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  5. The photoelectric effect is based on the law of conservation of

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  6. Photoelectric effect was successfully explained first by

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  7. In photoelectric effect

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  8. The momentum of a photon of wavelength lambda is

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  9. The rest mass of a photon of wavelength lambda is

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  10. In photoelectric effect, the number of photoelectrons emitted is propo...

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

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  12. Photoelectric effect supports quantum nature of light because :

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  13. The strength of the photoelectric current depends upon

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

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

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

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  17. In photoelectric effect , photocurrent

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

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

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

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