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प्रश्न
The size of the pupil of the eye is adjusted by:
(a) cornea
(b) ciliary muscles
(c) optic nerve
(d) iris
उत्तर
iris
The iris controls the size of the pupil.
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संबंधित प्रश्न
Define the term.
Power of accommodation of the eye.
What is the:
near point of a normal human eye?
Give the scientific names of the following parts of the eye:
a hole in the middle of the iris.
To focus the image of a nearby object on the retina of an eye:
(a) the distance between eye-lens and retina is increased
(b) the distance between eye-lens and retina is decreased
(c) the thickness of eye-lens is decreased
(d) the thickness of eye-lens is increased
Why does the eye-lens not have to do all the work of converging incoming light rays?
Mention if the following statement is true (T) or false (F) Give reason.
Ciliary muscles regulate the size of the pupil
Answer the following question.
Trace the sequence of events Whichoccur when a bright light is focused on your eyes.
Name the following:
The region in the eye where the rods and cones are located.
State the Function:
Cornea
Write an Explanation.
Minimum distance of distinct vision
