Which structure controls the size of the pupil?
ACone
BIris
CLens
DDisc
Answer & Solution
Correct answer: B. Iris
1. It sits behind the cornea.
2. It is a dark muscular diaphragm.
3. It is the iris.
_Source: NCERT Class 10 Science, Ch 11 'The Human Eye and the Colourful World'_
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