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

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P to Q

Q to R

R to S

R to G

answer is D.

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Detailed Solution

If E is the energy radiated in transition then ER→G>EQ→S>ER→S>EQ→R>EP→QFor getting blue line energy radiated should be maximum E∝1λ. Hence (4) is the correct option.

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