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Which of the following lines will have a...

Which of the following lines will have a wave no equal in magnitude to the value of R in the H-Spectral series

A

Limiting line of Balmer series

B

Limiting line of Lyman series

C

First line of Lyman series

D

First line of Balmer series

Text Solution

Verified by Experts

The correct Answer is:
B
`bar(v) = R [(1)/(n_(1)^(2))-(1)/(n_(2)^(2))]`
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For balmer series in the spectrum of atomic hydrogen the wave number of each line is given by bar(V) = R[(1)/(n_(1)^(2))-(1)/(n_(2)^(2))] where R_(H) is a constant and n_(1) and n_(2) are integers. Which of the following statements (s), is (are correct) 1. As wave length decreases the lines in the series converge 2. The integer n_(1) is equal to 2. 3. The ionisation energy of hydrogen can be calculated from the wave numbers of three lines. 4. The line of shortest wavelength corresponds to = 3.

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