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प्रश्न
Mention, if the following statement is True or False
Rods are responsible for vision in the dark
विकल्प
True
False
उत्तर
True
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संबंधित प्रश्न
What do the ciliary muscles do when you are focusing on a nearby object?
What is the range of vision of a normal human eye?
List, in order, the parts of the eye through which light passes to reach the retina.
How does the eye adjust itself to deal with light of varying intensity?
Refraction of light in the eye occurs at:
(a) the lens only
(b) the cornea only
(c) both the cornea and the lens
(d) the pupil
Mention if the following statement is true (T) or false (F) Give reason.
Ciliary muscles regulate the size of the pupil
Name the muscles of the eye responsible for the power of accommodation.
State the main functions of the following:
Coronary Artery
Choose the correct answer.
Colour is detected by ____________
Differentiate between:
Vitreous humour and Aqueous humour.
Draw a diagram of the human eye as seen in a vertical section and label the parts which suit the following descriptions relating to the:
(i) photosensitive layer of the eye.
(ii) structure which is responsible for holding the eye lens in its position.
(iii) structure which maintains the shape of the eyeball and the area of no vision.
(iv) anterior chamber seen in front of the eye lens.
(v) outermost transparent layer seen in front of the eyeball.
Choose the Odd One Out:
Write the name.
The fleshy screen behind cornea.
Write the function of the human eye and label parts of the figure given below.
Draw the struture of human eye and label its parts.
Assertion: Blind spot is a small area of the retina which is insensitive to light where the optic nerve leaves the eye.
Reason: There are no rods or cones present at the junction of the optic nerve and retina in the eye.
In the figure of the human eye, the cornea is represented by the letter
Write down the names of parts of the eye in the blank spaces shown in the figure.
The change in the focal length of an eye lens in human beings is caused by the action of ______.
Match the following.
| Column - I | Column - II | ||
| 1 | Retina | a | Path way of light |
| 2 | Pupil | b | Far point comes closer |
| 3 | Ciliary muscles | c | near point moves away |
| 4 | Myopia | d | screen of the eye |
| 5 | Hypermetropia | e | Power of accomadation |
