6) What instructions had the narrator given to ht sister and the mother?
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6) What instructions had the narrator given to ht sister and the mother?
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Answer:
First scientist to discover a spectral series of hydrogen atom
It consist of visible radiation spectrum
Experimentally, he found that these spectral lines could be expressed mathematically in the form of wavelength as:
Here R= Rhydberg constant = 109677cm-1(found experimentally), n= 3, 4, 5…… (higher discrete energy state from which electron jumps to 2nd energy state thus emitting radiation)
λ = wavelength of emitted radiation in (cm)
For maximum wavelength(λmax) in the Balmer series, n=3 (has to be minimum):
For minimum wavelength (λmin) in the Balmer series, n=∞(has to be minimum):
Lyman Series:
Spectral series when radiation emitted is due to jumping of electron from higher energy states to ground state
Mathematically expressed as
Here n= 2, 3, 4…
For maximum wavelength in the Lyman series, n=2 (has to be minimum):
λmax = 4/3R
For minimum wavelength in the Lyman series, n=∞(has to be minimum):
λmin = 1/R
Similarly, all other series could be expressed as:
Paschen Series:
Mathematically expressed as
Here n= 4, 5, 6…
Bracket Series:
Mathematically expressed as
Here n= 5, 6, 7…
PfundSeries:
Mathematically expressed as
Here n= 6, 7, 8…
Explanation:
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