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The lines in Balmer series have their wa...

The lines in Balmer series have their wavelengths lying between

A

Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.

B

Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'

C

'A' is true and 'R' is false

D

'A' is false and 'R' is true

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-ATOMS-EXERCISE -IB
  1. (A) electrons int the atom are held due to coulomb forces. (R) the a...

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  2. In Bohr model of the hydrogen atom, let R,v and E represent the radiu...

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  3. The lines in Balmer series have their wavelengths lying between

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  4. Assertion: Magnetic force between two short magnets, when they are co-...

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  5. The energy of a photon of wavelength lambda is

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  6. (A) bohr model can not be extended to two or more electron atoms. (R...

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  7. (A) large angle of scattering of alpha particles led to the discovery ...

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  8. (A) the trajetory traced by an incident particle depends on the impact...

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  9. Thickness of the foil of gold used in alpha-particle scattering experi...

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  10. In scattering experiment, find the distance of closest approach, if a ...

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  11. According the classical theory of Rutherford's model, the path of elel...

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  12. When an electron of the hydrogen atom jumps from a higher to lower en...

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  13. (A) hydrogen atom consists of only one electron but its emission spect...

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  14. (A) for the scattering of alpha- particles at large angles, only the n...

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  15. Statement-1 : Between any two given energy levels, the number of abosr...

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  16. (A) atoms of each element are stable and emit characteristic spectrum....

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  17. (A) most of the mass of the atom is concentrated in its nucleus. (R)...

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  18. (A) bohr's third postulaate states that the stationary orbits are thos...

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  19. (A) the total energy of an electron revolving in any stationary orbit ...

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  20. (A) in the experiment of alpha particle scattering, extremely thin gol...

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