In a collection of H-atoms, all the electrons jump from n=5 to ground level finally (directly or indirectly), without emitting any line in the Balmer series. The number of possible different radiation is
6
Explanation for correct answers:
Option (C) 6
Step 1 Possible lines
The electrons jump from to ground level
So the total number of possible lines is,
Step 2 Number of possible different radiation
Balmer series should be excluded,
Therefore, the possible Balmer lines are;
These 4 transitions will be excluded.
Total possible lines excluding the Balmer line is
Therefore, The number of possible different radiation is .
Hence option (C) 6 is correct.