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Why electronic energy is negative?...

Why electronic energy is negative?

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CHHAYA PUBLICATION-STRUCTURE OF ATOM-WARM UP EXERCISE
  1. What is meant by quantisation of energy of an electron?

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

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  3. Why electronic energy is negative?

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  4. What do you understand by stationary states?

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  5. What is the value of Plancks' constant in SI unit?

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  6. Differentiate between Rydberg formula & Balmerr formula.

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  7. Why do we consider each stationary state an an energy level with a def...

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  8. How many photons are emitted in the transition of the electron from th...

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  9. How is the radius of an electronic orbit related to principle quantum ...

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  10. Prove that, velocity of an electron in the first orbit in twice of tha...

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  11. Which theory forms the basis of Bohr's atomic model?

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  12. bohr's theory is not applicable to which of the following species? (i)...

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  13. Who proposed the concept of dual nature of electron?

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  14. What are the Broglie waves?

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  15. Write the Broglie equation for microscopic particles.

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  16. What is the relation between wave nature and particle nature of moving...

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  17. Derive a relation between kinetic energy and de Broglie wavelength ass...

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  18. What happens to the de Broglie wavelength associated with a moving par...

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  19. A hard struck cricket ball does not produce waves. Why?

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  20. Two particles P and Q are moving with the same velocity, but de brogli...

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