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For the Balmer series in the spectrum oF...

For the Balmer series in the spectrum oF H atom, `vec(v)=R_(H){(1)/(n_(1)^(2))-(1)/(n_(2)^(2))}` the correct statement among (I) to (IV) are:
(I) As wavelength decreases, the lines in the series converage
(II) The integer `n_(1)` is eqaual to 2.
(III) The lines oF longest wavelength corresponds to `n_(2)=3`
(IV) The ionization energy oF hydrogen can be calculated From wave number oF these lines:

A

1, 2 and 3

B

2, 3 and 4

C

1, 2 and 4

D

2 and 4 only

Text Solution

Verified by Experts

The correct Answer is:
C
(1) is correct because as wave length decreases, the spacing between the lines `(Delta lambda)` becomes smaller and smaller
(2) is correct because for Balmer series `n_(1) = 2`
(4) is correct because `n_(2) = 3` to `n_(1) = 2` will produce the longest wave length (being 1st line)
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