1.

 Figure shows the energy levels P, Q, R, S and G of an atom where G is the ground state. A red line in the emission spectrum of the atom can be obtained by an energy level change from Q to S. A blue line can be obtained by following energy level change   [MP PMT 1994]

A.   P to Q  
B.   Q to R
C.   R to S   
D.   R to G
Answer» E.


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