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Mention the most important application of de-Broglie concept.

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de-Broglie concept is utilised in the construction of electron microscope used for the measuremet of size of very small object.
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CHHAYA PUBLICATION-STRUCTURE OF ATOM-QUESTION ANSWER ZONE FOR BOARD EXAMINATION (VERY SHORT ANSWER TYPE)
  1. Bohr's theory is not applicable to which of the following species? (1)...

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  2. Balmer series of hydrogen spectrum lies in which region?

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  3. Mention the most important application of de-Broglie concept.

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  4. how are frequency and wave number of electromagnetic radiation related...

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  5. A electron beam after passing through a thin foil of gold produces a d...

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  6. What is a quantum?

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  7. What happens when an electron hits a zinc sulphide screen and what doe...

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  8. Write an expression for the wavelength acquired by an electron acceler...

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  9. Out of X-rays, gamma-rays and microwaves which one has the highest and...

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  10. What is the unit of Planck's constant in S.I. ? What other physical qu...

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  11. Arrange the given subshells in the increasing order of their energies:...

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  12. What is the main difference between wave emitted by an electric bulb a...

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  13. Do atomic orbitals have sharp boundaries?

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  14. At what distance from the nucleus is the radial probability maximum fo...

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  15. In which shell (s), there is no existence of d-subshell?

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  16. Write the values of the four quantum numbers of the electron(s) in the...

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  17. Out of the four quantum number which one does not results from the sol...

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  18. Which is most paramagnetic among Cu^(2+), Fe^(2+) and Cr^(3+) and why...

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  19. Why splitting of spectral lines is observed when the source producing ...

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  20. The 4f-subshell of an atom contains 12 electrons. What is the maximum ...

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