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The amount of light entering the eye is controlled by the:
Asclera
Bpupil
Ccornea
Dretina
Answer & Solution
Correct answer: B. pupil
1. The pupil is the central opening of the eye surrounded by the iris.
2. The iris adjusts the size of the pupil to let in more or less light.
3. Hence the pupil controls the amount of light entering the eye.
_Source: RRB Group D CEN-02/2018 PYQ, Q.91._