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If the radius of 1st Bohr orbit in hydro...

If the radius of 1st Bohr orbit in hydrogen atom is `0.5 A^@` 'then radius of 3rd Bohr orbit is

A

`0.25 A^@`

B

`0.40A^@`

C

`4.5A^@`

D

`0.45A^@`

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CHETANA PUBLICATION-Structure of atoms and nuclei-EXERCISE
  1. John Dalton's model of atom was

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  2. Bohr's theory applicable to

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  3. If the radius of 1st Bohr orbit in hydrogen atom is 0.5 A^@ 'then radi...

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  4. Which of the following quantities are inversely proportional to the cu...

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  5. Bohr's second postulate equation is mvr =nh/(2pi). In this relation n ...

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  6. According to Bohr's theory, the angular momentum for an electron in 5t...

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  7. Let 'P' and 'E' denote the linear momentum and energy of emitted photo...

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  8. The radius of the nucleus is of the order of …

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  9. The energy of an electron in n^th orbit is proporational to……..

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  10. Energy of the electron in n = oo is

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  11. Relation between K.E. and P.E. for an electron revolving in n^th bohr ...

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  12. When an electron in hydrogen atom is raised from the ground state to a...

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  13. If the P.E. of an electron in hydrogen atom is -27.2 eV, then its T.E....

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  14. The energy of an electron in the 1st Bohr orbit of hydrogen atom is

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  15. The energy of an electron in the 2nd orbit is -3.4 eV. So the energy o...

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  16. The ionisation potential of H2 atom is

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  17. The ratio of radii of the first three Bohr orbits is

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  18. The radius of first Bohr orbit is 0.53 A^@. The value of n if the radi...

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  19. The relation between force acting on the electron and principle quantu...

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  20. The unit of Rydberg's constant is

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