1.

The figure indicates the energy level diagram of an atom and the origin of six spectral lines in emission (e.g. line no. 5 arises from the transition from level B to A). The following spectral lines will also occur in the absorption spectrum [CBSE PMT 1995]

A.   1, 4, 6  
B.   4, 5, 6
C.   1, 2, 3  
D.   1, 2, 3, 4, 5, 6
Answer» D.   1, 2, 3, 4, 5, 6


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