Urgent help please

http://filestore.aqa.org.uk/subjects/AQA-CHEM5-QP-JUN13.PDF

Question 6c)

Why is it bigger and why blue light absorbed?

Thanks, its urgent!
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The energy change shown in the diagram represents the energy of red light and leads
to a solution that appears blue. Blue light has a higher frequency than red light.
Suggest whether the energy changeΔE will be bigger, smaller or the same for a
transition metal ion that forms a red solution. Explain your answer.