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(A) hydrogen atom consists of only one e...

(A) hydrogen atom consists of only one electron but its emission spectrum has many lines.
(R) only lyman series is found in the absorption spectrum of hydrogen atom whereas in the emission spectrum, all the series are found.

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

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-ATOMS-EXERCISE -IB
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  2. When an electron of the hydrogen atom jumps from a higher to lower en...

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

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

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

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

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

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

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

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

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  11. (A) in alpha particle scattering number of alpha paritcle undergoing h...

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  16. Assertion In He-Nelaser, population inversion takes place between ener...

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  18. A: In beta-decay an electron is emitted by the nucleus R: Electrons ...

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  20. According to Bohr's atomic model

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