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What voltage must be applied to an elect...

What voltage must be applied to an electron microscope to produce electron of wavelength `0.4overset@ A`.

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CHETANA PUBLICATION-Dual Nature of Radiation and Matter-EXERCISE
  1. Find the wavelength for a beam of neutrons, whose kinetic energy is 10...

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  2. Calculate de-Broglie wavelength of an electron beam accelerated throug...

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  3. What voltage must be applied to an electron microscope to produce elec...

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  4. Find the number of photons emitted per second by a 25 W source of mono...

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  5. Choose the correct answer from option given and write it with its corr...

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  6. The mass of moving photon is

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  7. In thermionic emission, the transformation of energy is

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  8. When a photon strikes a metal surface, a photoelectron in emission tak...

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  9. Photoelectric effect as explained by

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  10. The strength of photoelectric current depends upon

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  11. Thephotoelectric threshold wavelength of a certain metal is 3315 A.U. ...

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  12. Correct form of Einstein's photoelectricequation is

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  13. The threshold wavelength for photoemission from molybdenum is 2960over...

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  14. The equation E = pc is valid

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  15. If N(red) and N(Blue) are the numbers of photons emitted by respective...

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  16. The threshold wavelength of a metal is 1243 nm its work function will ...

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  17. In the graph of kinetic energy verses frequency, the intercept gives

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  18. When light of wavelength 4000overset@ A falls on photosensitive metal,...

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  19. The slope of frequency of incident light and stopping potential for a ...

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  20. Light of frequency 4nu0 is incident on the metal of the threshold fre...

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