Q74 / 225 · JEE Main 2003 · Chemistry

In Bohr series of lines of hydrogen spectrum, the third line from the red end corresponds to which one of the following inter-orbit jumps of the electron for Bohr orbits in an atom of hydrogen

  • Correct answer
    A
    $5 \rightarrow 2$
  • B
    $4 \rightarrow 1$
  • C
    $2 \rightarrow 5$
  • D
    $3 \rightarrow 2$

Solution

The lines falling in the visible region comprise Balmer series. Hence the third line would be $n_1=2, n_2=5$ i.e. $5 \rightarrow 2$

Hence, the correct answer is option: 'A'.

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