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The pupil of the eye is the circular opening through which light enters. Its diameter can vary from about 8.00 mm to about 2.

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Gven that a = mm Diamalo 8 x 10m uue Kmow that, Sno = l22 A Fos dim lighd Sine=122 x S78 X1Dm Sine=o00C0 8815 si (331450o0)

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