The human eye contains a molecule called 11-cis-retinal, Ask an Expert

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The human eye contains a molecule called 11-cis-retinal that changes conformation when struck with light of sufficient energy. The change in conformation triggers a series of events that results in an electrical signal being sent to the brain. The minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 . Calculate the longest wavelength visible to the human eye. (In nanometers)

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