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प्रश्न
For a healthy human eye, the distant point is infinite distance.
विकल्प
Right
Wrong
उत्तर
For a healthy human eye, the distant point is infinite distance- Right
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संबंधित प्रश्न
Write the function of the following part of the human eye:- iris
Explain why the image distance in the eye does not change when we change the distance of an object from the eye?
A person got his eyes tested by an optician. The prescription for the spectacle lenses to be made reads :
Left eye : +2.50 D
Right eye : +2.00 D
State whether these spectacle lenses will converge light rays or diverge light rays.
What kind of lens is present in the human eye?
Name two parts of the eye which refract light rays (or bend light rays).
Where is the image formed in a human eye?
Name the part of the retina which is insensitive to light.
What is the least distance of distinct vision for a normal human eye?
Name the part of our eyes which helps us to focus near and distant objects in quick succession.
Fill in the following blank with suitable word:
The part of eye which alters the size of the pupil is............
How does this affect the amount of light entering the eye?
Ciliary muscles of human eye can contract or relax. How does it help in the normal functioning of the eye?
How much is our field of view:
with both eyes open?
Fill in the following blank with suitable word:
Having two eyes gives a ................field of view.
Five persons A, B, C, D and E have diabetes, leukaemia, asthma, meningitis and hepatitis, respectively.
Which of these persons can donate eyes?
The animal which does not have eyes that look sideways is:
(a) Horse
(b) Chicken
(c) Lion
(d) Fish
Name the following:
The photoreceptors found in the retina of the eye.
Mention the characteristics of the image that falls on the retina of the eye.
State the main functions of the following:
Seminal Vesicles
Choose the correct answer.
Rods are receptor of ______________
Name the following:
The focal length of the lens is altered by the contraction of which type of muscles.
Name the following:
The area where the image is formed but not seen by our eye is termed as.
Choose the Odd One Out:
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.
We cannot distinguish colours in dim light. Explain giving suitable reasons.
A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in the figure as A, B, C and D. In which position mirror will be visible?
 |
 |
 |
 |
| (A) | (B) | (C) | (D) |
Which of the following statements is correct regarding rods and cones in the human eye?
Which part of the eye gets affected if someone is suffering from cataract? How is it treated?
______ of the eye is comparable to the film of a camera.
| 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 accomodation |
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 accommodation |
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 |
Assertion (A): Rods and Cones are photoreceptors in the sclera of eyeball.
Reason (R): Rods are sensitive to dim light.
State the functions of the following:
Iris
Write in proper sequence the names of all the parts of the human eye through which the light rays coming from an object pass before they form an image on the retina.
Write the main functional activity of the following structure.
Ciliary body and suspensory ligament
