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Photoelectric emission occurs only when ...

Photoelectric emission occurs only when the incident light has more than a certain minimum

A

power

B

wavelenght

C

Intensity

D

Frequency

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The correct Answer is:
4

Conceptual.
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NARAYNA-DUAL NATURE OF RADIATION AND MATTER-EXERCISE - 3
  1. When monochromatic radiation of intensity I falls on a metal surface, ...

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  2. The potential difference that must be applied to stop the fastest phot...

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  3. Photoelectric emission occurs only when the incident light has more th...

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  4. In photoelectric emission process from a metal of work function 1.8 eV...

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  5. The threshold frequency for a certain metal is 3.3xx10^(14) Hz. If lig...

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  6. Electrons used in an electron microscope are accelerated by a voltage ...

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  7. Monochromatic radiation emitted when electron on hydrogen atom jumps f...

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  8. Lights of two different frequencies whose photons have energies 1 and ...

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  9. A alpha -parhticle moves in a circular path of radius 0.83 cm in th...

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  10. If the momentum of an electron is changed by p, then the de - Broglie ...

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  11. For photoelectric emission from certain metal the cut - off frequency ...

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  12. If velocity of a particle is 3 times of that of electron and ratio of ...

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  13. The wavelength lambda(e ) of an electron and lambda(p) of a photon of...

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  14. If the kinetic energy of the particle is increased to 16 times its pre...

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  15. Light with an enargy flux of 25xx10^(4) Wm^(-2) falls on a perfectly r...

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  16. When the energy of the incident radiation is increased by 20 % , kinet...

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  17. When a certain metallic surface is illuminated with mono chromatic lig...

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  18. A photoelectric surface is illuminated successively by monochromatic l...

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  19. Light of wavelength 500 nm is incident on a metal with work function 2...

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  20. Electrons with de-Broglie wavelength lambda fall on the target in an X...

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