Physicseasy · Past Paper
Which part of the eye controls the amount of light entering it?
ACornea
BRetina
CIris
DLens
✓ Correct Answer: C — Iris
The iris adjusts the size of the pupil to regulate how much light enters the eye.
Share this question
More from Physics
- In a hydraulic machine, the area of the smaller piston is 0.01 m^2 and the larger piston is 1 m^2. If 10 N force is applied to the small piston, the force on the large piston is:
- The image formed by a concave lens is always:
- The odometer of an automobile measures:
- Upthrust is also known as:
- Which of these describes non-uniform motion?