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प्रश्न
Vision defect that increases distance between the lens of the eye and retina of the eye is termed as myopia.
पर्याय
Right
Wrong
उत्तर
Vision defect that increases distance between the lens of the eye and retina of the eye is termed as myopia- Right
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संबंधित प्रश्न
Distinguish between: aqueous humor and vitreous humor
Explain, why a normal eye is not able to see distinctly the objects placed closer than 25 cm, without putting any strain on the eye.
What kind of lens is present in the human eye?
Name the part of the eye:
on which the image is formed.
Out of rods and cones m the retina of your eye:
which detect colour?
What is the:
far point of a normal human eye?
Name the part of our eyes which helps us to focus near and distant objects in quick succession.
Define the term "power of accommodation" of human eye.
Fill in the following blank with suitable word:
Most of the refraction of light rays entering the eye occurs at the outer surface of the.............
Fill in the following blank with suitable word:
The iris controls the amount of................entering the eye.
What happens to the eye when you enter a darkened cinema hall from bright sunshine? Give reason for your answer.
There are two types of light-sensitive cells in the human eye:
Where are they found?
Describe the working of the human eye with the help of the above diagram.
Explain the functions of the following parts of the eye:
(i) cornea
(ii) iris
(iii) pupil
(iv) ciliary muscles
(v) eye-lens
The term " accommodation" as applied to the eye, refers to its ability to:
(a) control the light intensity falling on the retina
(b) erect the inverted image formed on the retina
(c) vary the focal length of the lens
(d) vary the distance between the lens and retina
Which of the following controls the amount of light entering the eye?
(a) ciliary muscles
(b) lens
(c) iris
(d) cornea
Out of animals of prey and predators, which have their eyes:
at the front of their head?
The animals called predators have:
(a) both the eyes on the sides
(b) one eye on the side and one at the front
(c) one eye on the front and one at the back
(d) both the eyes at the front
Name the following:
The photoreceptors found in the retina of the eye.
Mention, where in living organism is the following located and state their main function:
Fovea centralis
Mention if the following statement is true (T) or false (F) Give reason.
yellow spot of the retina is the region of colour vision
Mention the characteristics of the image that falls on the retina of the eye.
With reference to the functioning of the eye, answer the question that follow:
Name the two structure in the eye responsible for bringing about the change in the shape of the lens.
Give scientific reason:
One can sense colours only in bright light.
State the main functions of the following:
Coronary Artery
Name the following:
The opening through which light enters the eyes.
Choose the correct answer.
Colour is detected by ____________
Choose the correct answer :
The rods and cones of a vertebrate retina function is to _________
What are the functions of tears?
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.
Give Technical Term:
The adjustment of the eye in order to obtain a clear vision of objects at different distances
Choose the Odd One Out:
Complete the following sentence with appropriate Word
The part of the human eye where rod cells and cone cells are located is the:
Draw a scientifically correct labelled diagram of a human eye and answer the questions based on it:
- Name the type of lens in the human eye.
- Name the screen at which the maximum amount of incident light is refracted?
- State the nature of the image formed of the object on the screen inside the eye.
In a relaxed state, the focal length of healthy eyes is _______.
Write scientific reason.
The movie cannot be enjoyed if seat of a viewer is too close to the screen in the cinema.
Explain the structure and functioning of Human eye. How are we able to see nearby as well as distant objects?
We cannot distinguish colours in dim light. Explain giving suitable reasons.
Where is the following located?
Yellow spot
