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The mass fo 1 mole pghoton of wavelengt...

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

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The correct Answer is:
D
` m= N. h/(lambdac) = ( 6.023 xx 10^(23) xx 6.626 xx 10^(-34))/( 589 xx 10^(-9) xx 3. 0 xx 10^8)`
` = 2 . 26 xx 10^(-12) kg`.
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P BAHADUR-ATOMIC STRUCTURE-Exercise 3A
  1. Which of the following connot be obtained form the solution of Schrodi...

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

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

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

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

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

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

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

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

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  10. Fill up a sutiable figure in each set in respective choices for psi(3...

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  11. If the uncertainties in the measurement of position and momentum ...

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  12. Ratio of m^(th) wavelength of Lyman series in H-atom is equal to:

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  13. IE1 for (H) and De are 13.6 eV 1 and 24.6 eV respectively . Thus enr...

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  14. The circumfernce fo n^(th) orbit in H-atom can be expressed in tems fo...

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  15. Ration of m^(th) to n^(th) wavelength of Balmer series in H-atom is eq...

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  16. An excited hydrogen atom returns to the ground state . The wavelength ...

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  17. When an electron fo mass 6 m and charge 6e moves with a velocity of 7u...

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  18. If lambda0 is the Threshold wavelength of a metal for photoelencron e...

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  19. The emission of electrons from a metal surface exposed to light ra...

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  20. The number fo electrons present in 1 cm^3 of Mg (density of . (12)M...

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