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Photons of frequency v fall on a metal s...

Photons of frequency v fall on a metal surface for which the thershold frequency is `v_(0)(vge v_(0))`. Then,

A

all ejected electrons have the same K.E. `h(v-v_(0))`

B

the ejected electrons have a distribution of kinetic energy from zero to `h(v-v_(0))`

C

the most energetic electrons have K.E. hv

D

the average K.E. of ejected electrons is `hv_(0)`

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The correct Answer is:
B
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CP SINGH-PHOTOELECTRIC EFFECT-EXERCISES
  1. As the intensity of incident light increases

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  2. The number of photo - electrons emitted per second from a metal surfac...

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  3. Photons of frequency v fall on a metal surface for which the thershold...

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  4. Which of the following statements about photoelectric effict is/are fa...

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  5. When stopping potential is applied in an experiment on photoelectric e...

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  6. In photoelectric effect

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  7. A metallic surface ejects electrons when exposed to green light of int...

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

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  9. Two identical photocathodes receive light of frequency f(1) andf(2) if...

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  10. Radiation of wavelength lambda in indent on a photocell . The fastest ...

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  11. When a certain metallic surface is illuminated with monochromatic ligh...

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  12. Photoelectric emission is observed from a metallic surface for frequen...

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  13. A photon of wavelength 1000 Å has energy 12.3 eV. If light of waveleng...

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  14. In the previous, if the intensity of light is made 4 I, the stopping p...

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  15. In question 23, if the intensity of light is made 4 I, the saturation ...

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  16. The threshold frequency for certain metal is v0. When light of frequen...

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  17. In an experiment on photoelectric effect light of wavelength 400 nm is...

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  18. If Planck's constant is denoted by h and the charge by e, experiments ...

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  19. In order to increase the kinetic energy of ejected photoelectrons, the...

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  20. In photoelectric emission the number of electrons ejected per second i...

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