Multiple choice general knowledge

The pupil of the eye expands as much as ---percent when a person looks at something pleasing

  1. 50

  2. 45

  3. 40

  4. 35
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Research indicates that the human pupil can expand up to approximately 45% when viewing something pleasing or attractive. This physiological response is part of the body's autonomic reaction to positive stimuli. The expansion is caused by the sympathetic nervous system.

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