Claudio is out on a whale watching boat trip. He sees a dolphin near the boat because light waves pass through his cornea and enter his eye through the pupil. Which step of processing in the visual system does this describe?

Physical stimulus perception

Explanation:

The visual system is the coordinated system which includes the eyes and brain which allows us to visualise or see the surrounding environment.

The visual system processing involves the physical stimulus, perception of the physical stimulus by the sensory cells, transduction or transmission of the signal to the brain, perceiving the signal.

In the given question, the light enters the eye means that the first step of visualisation that is physical stimulus perception is achieved.

Thus, Physical stimulus perception is correct.