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(A) : Hydrogen has only one electron in ...

(A) : Hydrogen has only one electron in its orbit but produces several spectral lines
(R) : There are many excited energy levels available in a sample of Hydrogen gas

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 but (R) is false

D

(A) is false but (R) is true

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-ATOMIC STRUCTURE-Level - I (EAMCET) (Exercise - I (Fundamental particle , Atomic number and mass number , Atomic models, Nature of light , Spectra))
  1. The spectrum obtained from incandescent solids is

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  2. The wavelengths of which series lie in the ultraviolet region ?

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  3. (A) : Hydrogen has only one electron in its orbit but produces several...

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  4. When electron jumps from 5^(th) energy level to 1^(st) energy level, t...

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  5. When the electron in the 'H' atom jumps from the fifth orbit to the se...

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  6. The following series of lines is found in the ultraviolet region of hy...

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  7. Brakett series is produced when the electrons from outer orbits jumps ...

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  8. The equation corresponding to the wave number of spectral lines if Pfu...

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  9. The value of n(1) in Balmer series is

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  10. The value of Rydberg constant is

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  11. A spectral line of hydrogen with lambda = 4938 Å belongs to the series

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  12. Among the first lines of Lyman,Balmer, paschen and Brackett series in ...

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  13. What are the values of n(1) and n(2) respectively for H(b) line in the...

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  14. The fourth line of the Balmer series corresponds to the electronic tra...

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  15. In a H-atom, the transition takes place from L to K shell. If R = 1.08...

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  16. The wave lengths of first member of Balmer series of a hydrogen atom i...

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  17. The wave length of H(delta) line of Balmer series of a hydrogen atom i...

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  18. The first emision line of hydrogen atomic spectrum in the Balmer serie...

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  19. What is the wave length of H(b) line Balmer series of hydrogen spectru...

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  20. If in Hydrogen atom, an electron jumps from n(2) = 2 to n(1) = 1 in Bo...

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