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The light coming from a hydrogen-filled discharge tube falls on sodium metal. The work function of sodium is 1.82 eV and the kinetic energy of the fastest photoelectron is 0.73 eV. Find the energy of incident light

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The correct Answer is:
2.55 eV
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CHHAYA PUBLICATION-QUANTUM THEORY-Exercise (Very Short Answer Types Questions)
  1. Which property of light is used to explain the characteristics of phot...

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  2. What is the rest mass of a photons?

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  3. The wavelength of an electromagnetic radiation is lamda. What is the e...

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  4. The light coming from a hydrogen-filled discharge tube falls on sodium...

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  5. In case of photoelectric emission, the maximum kinetic energy of emitt...

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  6. In case of electromagnetic radiation of frequency f, what is the momen...

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  7. If photons of energy 6eV are incident on a metallic surface, the kinet...

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  8. The threshold wavelength of a metal having work function W is lamda. W...

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  9. The work function of a metal surface for electron emission is W. What ...

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  10. What is the effect on the velocity of the emitted photoelectrons if th...

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  11. Two metals A and B have work function 4eV and 10eV respectively. Which...

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  12. Ultravilet light is incident on two photosensitive materials having wo...

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  13. Is it possible to bring about interference of electron?

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  14. What type of wave is suitable to represent the wave associated with a ...

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  15. Davission and Germer experimentally demonstrated the existence of wav...

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  16. The wavelength of a stream of charged particles accelerated by a volta...

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  17. The de Broglie wavelength of an electron and the wavelength of a photo...

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  18. An electron and a proton have the same kinetic energy. Identify the pa...

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