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How many photons are emitted in the tran...

How many photons are emitted in the transition of the electron from the fourth to the first energy level of H-atom?

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There is only one electron in H-atom. Hence, during the transition of electron from the fourth to the first energy level, only one photon is emitted.
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CHHAYA PUBLICATION-STRUCTURE OF ATOM-WARM UP EXERCISE
  1. Differentiate between Rydberg formula & Balmerr formula.

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

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

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

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

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

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

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

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  9. What are the Broglie waves?

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  10. Write the Broglie equation for microscopic particles.

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

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

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

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

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

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  16. Compare the wavelengths of a molecule of each O(2) and CO(2), travelli...

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  17. Why is de Broglie wave termed as matter wave?

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  18. Show the wavelength of de Broglie wave associated with a moving partic...

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  19. What are the differences between electromagnetic waves annd matter wav...

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  20. Show that the circumference of the electronic orbit is an integral mul...

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