NCERT · Class 8 · Science · LightWhich part of the human eye controls the amount of light entering it?
Step-by-Step Solution
The iris is a dark muscular structure in the eye that controls the size of the pupil and thereby regulates the amount of light entering the eye.
Detailed Options Breakdown
Option : Cornea
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Light.
Option 1: Iris (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Retina
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Light.
Option 3: Lens
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Light.
💡 Study Guide: This question tests core syllabus concepts from Light. For formulas, key summaries, and mock exam reference guides, read the full Light Revision Notes.