question_answer

In Bohr series of lines of hydrogen spectrum, the third line from the red end corresponds to which one of the following inner-orbit jumps of the electron for Bohr orbits in an atom of hydrogen?     AIEEE  Solved  Paper-2003

A) \[3\to 2\] 

B)                       \[5\to 2\]

C) \[4\to 1\]                            

D) \[2\to 5\]

Correct Answer: B

Solution :

                Hydrogen spectrum coloured radiation means visible radiation corresponds to Balmer series \[({{n}_{1}}=2,\,{{n}_{2}}=3,4...)\]             3rd line from the red end it means \[5\to 2\]