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The dual nature of radiations was propos...

The dual nature of radiations was proposed by
(1) Max Planck (2) de-Broglie
(3) Einstein
( 4) Schrodinger

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The dual nature of radiation was proposed by ………..

Dual nature of matter was proposed by de Broglie in 1923, it was experimentally verified by Davisson and Germer by diffraction experiment. Wave character of amtter has significance only for microscopic partiles. De Broglie wavelength or wavelength of matter wave can be calculated using the following relation: lamda=(h)/(mv) Where, 'm' and 'v' are te mass and velocity of the particle. de Broglie hypothesis suggested that electron waves were being diffracted by the target, much as X-rays are diffracted by planes of atoms in the crystals. Q. Which among the following is not used to calculate the de Broglie wavelength?

NARAYNA-STRUCTURE OF ATOM-EXERCISE - IV EXEMPLAR PROBLEMS
  1. The dual nature of radiations was proposed by (1) Max Planck <b> (2)...

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  2. Which of the following conclusions couldnot be derived from Rutehrford...

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  3. Which of the following options does not represent ground state electr...

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  4. Which of the following statement is not correct about the charactersti...

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  5. Which of the following statements about the electron is incorrect?

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  6. Which of the following properties of atom could be explained correctl...

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  7. Two atoms are said to be isobars is

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  8. The number of radial nodes for 3p orbital is......

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  9. Number of angular nodes for 4d orbtial is.........

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  10. Which of the following is responsible to rule out the existence of def...

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  11. Total number of orbitals associated with thrid shell will be.....

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  12. Orbital angular momentum depends on .........

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  13. Isodiapheres are the atoms of two elements having same values of:

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  14. The pair of ions having same electronic configuration is.

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  15. For the electrons of oxygen atom, which of the following statemetns c...

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  16. It travelling at same speeds, whichof the following mater waves have t...

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  17. Identify the pairs which are not of isotopes? (1) ""(6)^(12) X,(3)^(...

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  18. Match species given in Column I with the electronic configuration give...

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  19. State whether the following sets of quantum numbers can be allowed or...

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  20. Which of the following pair would have larger size? a.K or K^(o+) , ...

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  21. The principal quantum number determines ……….of the atom

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