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When the intensity of a light source is ...

When the intensity of a light source is increased

A

the number of photons emitted by the source in unit time increases

B

the total energy of the photons emitted per unit time increases

C

more energetic photons are emitted

D

faster photons are emitted

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The correct Answer is:
A

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CP SINGH-PHOTOELECTRIC EFFECT-EXERCISES
  1. When ultraviolet radiation is incident on a surface, no photoelectrons...

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  2. A non-monochromatic light is used in an experiment on photoelectric ef...

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  3. When the intensity of a light source is increased

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  4. The photocurrent in an experiment on photoelectric effect increases if

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  5. A point source of light is used in a photoelectric effect. If the sour...

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  6. A phot of energy h upsilon is absorbed by a free electron of a metal h...

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  7. Photoelectric effect supports quantum nature of light because (a) th...

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  8. If the frequency of light in a photoelectric experiment is doubled the...

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  9. Two identical metal plates show photoelectric effect by a light of wav...

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  10. The cathode of a photoelectric cell is changed such that the work func...

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  11. The frequency and intensity of a light source are both doubled. Consid...

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

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  13. A photoelectric cell is illuminated by a point source of light 1 m awa...

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  14. If the distance of 100 Watt lamp is increased from a photocell, the sa...

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  15. A point source causes photoelectric effect from a small metal plate. W...

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  16. When a monochromatic point source of light is at a distance of 0.2 m...

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  17. The collector plate in an experiment on photoelectric effect is kept v...

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  18. The electric field associated with a light wave is given by E= E0 sin...

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  19. A beam of light of wavelength lambda is incident on a metal having wor...

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  20. A photon of energy E ejects a photoelectron from a metel surface whose...

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