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The threshold wavelength of sodium metal...

The threshold wavelength of sodium metal is `6,780 overset @A`.The work function of metal will be

A

`1.83 eV`

B

2.75 eV

C

2.95 eV

D

3.25 eV

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MODERN PUBLICATION-UNIT TEST -07-EXERCISE
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  4. The work function of a metallic substance is 4.0 eV.If two photons eac...

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  7. The magnitude of saturation photoelctric current depends upon:

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  8. When light of wavelength 300 nm falls on a photoelectric emitter,photo...

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  9. According to Einstein's photoelectric equation, the graph between kine...

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  10. Light of wavleength 5,000 overset @A falls on a photo sensitive plate ...

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  11. The strength of transverse magnetic field required to bend all photoel...

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  12. The momentum of a photon of wavleengh 5,000 overset @A will be

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  13. What is the de-Brogile wavelength of 1 kg mass moving with a velocity ...

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  14. The wavelength of a particle having movement of 2 xx 10^(-28) kg m s^(...

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  15. If the momentum fo particle is doubled,then its de-|B|roglie wavelengt...

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  16. The de-Broglie waelength of an electron of energy 600 eV is

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  17. If we consider electrons and photons of same wave length, then they w...

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  18. A radio transmiter operaties at a frequency of 880 kHz and a power of ...

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