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The threshold wavelength of a metal havi...

The threshold wavelength of a metal having work function W is `lamda`. What will be the threshold wavelength of a metal having work function 2W ?

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The correct Answer is:
`(lamda)/(2)`
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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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  19. The de Broglie wavelength of a particle of kinetic energy K is lamda. ...

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  20. The de Broglie wavelength associated with an electron accelerated thro...

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