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The pair having identical velue fo e//m...

The pair having identical velue fo ` e//m:`

A

A proton and a neutron

B

A proton and a deutrium ion

C

An alpha-particel and a deuterium ion

D

An elecrron and gamma-rays

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The correct Answer is:
C
`e//m` for alpha-particel ` = 2/4 = 1/2 , e//m` for deuterum ion ` 1//2` .
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P BAHADUR-ATOMIC STRUCTURE-Exercise 3A
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  2. The electronic configuration of .(46)Pd is :

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  3. The pair having identical velue fo e//m:

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  4. For an electron the product of velocity fo electron and pricipa quantu...

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  5. Which of the following corresponds to one node ?

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  6. For a satellite moving in an orbit aroun the earth the ratio of kineti...

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  7. A photosensitve metallic surface has work fuction hv0 If photons of ...

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  8. The work functions for metals A, B and ( C) are presepctively 1. 92 ...

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  9. Carbo , silicon and Germanitum atomshave four valence electrons each ....

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  10. The total enrgy of electron in the firdt state fo H-atom is -3 . 4 eV...

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  11. If lambdav, lambdax and lambdam represents the wavelength of visible...

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  12. Which of the following connot be obtained form the solution of Schrodi...

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  13. Which of the following does not characteristic X -rays ?

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  14. Which electronic level would allow the hydrogen atom to absorb a phot...

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  15. The mass fo 1 mole pghoton of wavelength 589 nm is :

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  16. Number of degenerate orbitals in a level of H-atom having En = (Rh)/9...

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  17. The orientiation of an atomic orbital is governed by :

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  18. The uncertaintuy invelved in the measurement fo velocity within a dist...

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  19. The speed of an electron having its wavelength being equal to speed ca...

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  20. The differnce between nth and (n+1) the Bohr radius of B atom is equa...

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