Iris
Trending Questions
A dark muscular diaphragm that controls the size of the pupil is ______.
Iris
Cornea
Ciliary muscle
Aqueous humour
Which part of the human eye is responsible of rendering different eye colour for different human beings?
pupil
iris
lens
cornea
What is the function of iris?
It focuses light on retina.
It controls the size of pupil.
It controls ciliary muscles.
It controls the size of cornea.
What is an iris and where is it located?
It is transparent bulge, located behind cornea.
It is a transparent medium, located behind retina.
It is a dark muscular diaphragm, located behind cornea.
It is a dark muscular diaphragm, located infront of cornea.
- Crystalline lens
- Cones
- Cornea
- Iris
Which part of the eye is donated after death?
The _____ appears black because no light is reflected from it.
- Retina
- Pupil
- Iris
- Cornea
We all have observed that some people have black eyes, some brown and some light blue. What part of the eye gives it its colour?
Crystalline lens
Cones
Iris
Cornea
(a) ciliary muscles (b) lens (c) iris (d) cornea
Match the following in most appropriate way:
Part of eyeFunctiona)Irisp)Converts the lightinto neural signals, and send these signals on to the brain for visual recognition.b) Pupilq)Primarily focusesand controls the entrance of light into the eye.c)Retinar)Controls size of pupil and amount of light reachingthe retina.d)Corneas)Focuses light onto the retina and help the eye to focus on objects at different distances.
a-s, b-r, c-t, d-p, e-q
a-r, b-s, c-p, d-t, e-q
a-r, b-s, c-t, d-q, e-p
a-s, b-r, c-p, d-t, e-q
- Choroids
- Iris
- Retina
- lens
- Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
- Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- Assertion is correct but Reason is incorrect
- Both Assertion and Reason are incorrect
Why does it take some time to see the surroundings clearly in a dark cinema hall when a person enters from the bright sunlight?
Given below are sets of 5 terms each. Rewrite the terms in the correct order in a logical sequence.
Pupil, Yellow spot, Cornea, Lens, Aqueous humour (Path of light into eye from an object)
- Crystalline lens
- Iris
- Cones
- Cornea
Name the process or term for the following statement:
A pigmented circular area in the eye
Which part of the human eye is responsible of rendering different eye colour for different human beings?
pupil
iris
lens
cornea
- 5000 nm
- 18000 nm
- 10000 nm
- 25000 nm
- Crystalline lens
- Cones
- Cornea
- Iris
- B
- A
- C
- D
What is the function of iris?
It focuses light on retina.
It controls the size of pupil.
It controls ciliary muscles.
It controls the size of cornea.
Name the part of the eye :
(a) which controls the amount of light entering the eye.
(b) on which the image is formed.
(c) which changes the focal length of eye-lens.
(a) cornea (b) ciliary muscles (c) optic nerve (d) iris
- Iris
- Retina
- Pupil
- Cornea
Match the following in most appropriate way:
Part of eyeFunctiona) Irisp) Converts the light into neural signals, and sendsthese signals on to the brain for visual recognition.b) Pupilq) Primarily focuses and controls the entrance of light into the eye.c) Convex lensr)Regulates the amount of light reaching the retina.d) Retinas) Controls size of pupil and amount of light reaching the retina.e) Corneat) Focuses light onto the retina and helps the eye to focus on objects at different distances.
- a-s, b-r, c-t, d-p, e-q
- a-r, b-s, c-p, d-t, e-q
- a-r, b-s, c-t, d-q, e-p
- a-s, b-r, c-p, d-t, e-q
While seeing objects very close to the eye the ciliary muscles _________.
- remains same
- reflects all light
expand
- contract
- Crystalline lens
- Iris
- Cones
- Cornea
(a) cornea
(b) ciliary muscles
(c) optic nerve
(d) iris