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A photocell employs photoelectric effect...

A photocell employs photoelectric effect to convert

A

chanae in the frequency of light into a change in the electric current

B

change in the frequency of light into a change in electric voltage

C

change in the intensity of illumination into a change in photoelectric current

D

change in the intensity of illumination into a change in the work

Text Solution

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The correct Answer is:
3
The photoelectric current is directly proportional to the intensity of illumination. Therefore a change in the intensity of the incident radiation will change the photocurrent also.
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NARAYNA-DUAL NATURE OF RADIATION AND MATTER-EXERCISE - 3
  1. A photocell employs photoelectric effect to convert

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  2. When photons of energy hv fall on an aluminium plate (of work function...

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  3. The momentum of a photon of energy 1 MeV in kg-m/s, will be

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  4. Monochromatic light of frequency 6.0 xx 10^(14) Hz is produced by a la...

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  5. A 5 W source emits monochromatic light of wavelength 5000 Å. When plac...

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  6. A particle of mass 1 mg has the same wavelength as an electron moving ...

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  7. The work function of a surface of a photosensitive material is 6.2 eV...

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  8. A particle of mass 1 mg has the same wavelength as an electron moving ...

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  9. The number of photoelectrons emitted for light of a frequency v (highe...

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  10. Monochromatic light of wavelength 667 nm is produced by a helium neon ...

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  11. The figure shows a plot of photo current versus anode potential for a ...

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  12. A 0.66 kg ball is moving wih a speed of 100 m//s. The associated wavel...

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  13. When monochromatic radiation of intensity I falls on a metal surface, ...

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

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

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

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

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

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

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

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