CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Eye

is a part of ...

Question

________ is a part of the eye that controls the size of the pupil.

A

Iris

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

Cornea

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Sclera

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Retina

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Iris
The size of the pupil is regulated by the activity of the radial and circular muscles present in the iris of the eye. When the circular muscles contract, the size of the pupil decreases and contraction of radial muscles increases the size of the pupil.

Suggest Corrections

thumbs-up

3

Similar questions

Q. ________ is a part of the eye that controls the size of the pupil.

A dark muscular diaphragm that controls the size of the pupil is ______.

Q. The hole in the eye that controls the amount of light that enters is the
(a) iris.
(b) pupil.
(c) cornea.
(d) sclera.

Q. Fill in the following blanks with suitable words:
(a) Most of the refraction of light rays entering the eye occurs at the outer surface of the.............
(b) The part of eye sensitive to light is...................
(c) The part of eye which alters the size of the pupil is............
(d) When light is dim, the pupil becomes................
(e) The iris controls the amount of................entering the eye.
(f) The ciliary muscles control the shape of the ...............
(g) To bring light from a distant object to a focus on the retina of the eye, the convex eye-lens needs to be made..........
(h) To bring light from a near object to a focus on the retina of the eye, the convex eye-lens need to be made.......

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Eye

BIOLOGY

Watch in App

explore_more_icon

Explore more

Standard X Biology

Join BYJU'S Learning Program

CrossIcon