Question

For night flying operations, the best night vision is achieved when the A. pupils of the eyes have become dilated in approximately 10 minutes. B. cones in the eyes have become adjusted to the darkness in approximately 5 minutes. C. rods in the eyes have become adjusted to the darkness in approximately 30 minutes.

Answer 1

For night flying operations, the best night vision is achieved when the rods

in the eyes have become adjusted to the darkness in approximately 30

minutes.

Rods is the eye pigment which help us see in areas which have

little brightness and dark places too. Cones is the pigment which aids

vision in bright places.

The rods however have to adjust to the darkness for about 30 minutes

before proper vision is achieved.

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