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An electron beam after hitting a nickel ...

An electron beam after hitting a nickel crystal produces a diffraction pattern. What do you conclude?

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From this phenomenon, we can conclude that electrons have wave nature.
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CHHAYA PUBLICATION-STRUCTURE OF ATOM-WARM UP EXERCISE
  1. Explain- The role of threshold frequency is photoelectric effect is in...

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  2. An electron beam on hitting a ZnS screen produces scintillations on it...

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  3. An electron beam after hitting a nickel crystal produces a diffraction...

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  4. Mention the property of electromagnetic radiation (wave nature or part...

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  5. Give two examples of particle nature of electromangetic radiation.

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  6. What type of spectrum will be obtained if the electron of H-atom appro...

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  7. Name the series of spectral lines observed I the visible regionn of hy...

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  8. Indicate spectral regions corresponding to Lyman, Balmer, Paschen & br...

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  9. Which electronic transitionn corresponds to the third line in the Balm...

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  10. Name the five series in the atomic spectrum of hydrogen.

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  11. Why is the line spectrum of an element known as the fingerprint of its...

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  12. how would you obtain the line spectrum of hydrogen?

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  13. Give Rydberg formula for the calculation of wave number of various spe...

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  14. Name the series of spectral lines obtained, when electrons from variou...

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  15. Indicate all the possible pathways (involving one or more steps) for t...

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  16. What is ground state and excited state of an electron?

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  17. What is meant by quantisation of energy of an electron?

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  18. What is Bohr's postulated of angular momentum?

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  19. Why electronic energy is negative?

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  20. What do you understand by stationary states?

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