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Radiation from hydrogen discharge tube f...

Radiation from hydrogen discharge tube falls on a cesium plate find the maximum possible kinetic energy of the photeelectron work function of cesium is `1.9ev`

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The correct Answer is:
A
Given `W_(ces) = 1.9 eV`
the radiations coming from the Hydrogen discharges tube consist of photons of energy is equal to `13.6 eV.`
Maximum KE of photoelectrons emitted
`=Energy of Photons -Work function of metal`
`=13.6eV-19ev = 11.7 eV`
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HC VERMA-BOHR'S MODEL AND PHYSICS OF THE ATOM-Exercises
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  5. A beam of momechromatic light of wavelength lambda ejectes photonelect...

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  6. Electron are emited from an electron gun at almost zero velocity and a...

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  7. A neutron having kinetic energy 12.5eV collides with a hydrogen atom ...

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  9. A neutron moving with a speed u strikes a hydrogen atom in ground stat...

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  10. When a photon is emited by a hydrogen atom , the photon carries a mome...

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  11. When a photon is emitted from an atom , the atom recils The kinetic en...

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  12. The light emitted in the transition n = 3 to n= 2 in hydrogen is calle...

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  13. Light from balmer series of hydrogen is able to eject photoelectron fr...

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  14. Radiation from hydrogen discharge tube falls on a cesium plate find th...

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  15. A filter transition only the radiationof wavelength greater than 440 n...

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