Advertisements
Advertisements
प्रश्न
Mention if the following statement is true (T) or false (F) Give reason.
Blind spot is called so because no image is formed on it.
विकल्प
True
False
उत्तर
True
APPEARS IN
संबंधित प्रश्न
How does the eye regulate the amount of light that falls on the retina?
Explain the following:
Mechanism of generation of light-induced impulse in the retina.
The optical prescription for a pair of spectacles is :
Right eye : −3.50 D
Left eye : −4.00 D
Which is the weaker eye?
What is the name of:
the curved, transparent front surface of the eye?
Give the scientific names of the following parts of the eye:
a hole in the middle of the iris.
The eyes of a person are focused (i) on a nearby object, and (ii) on a distant object, turn by turn. In which case:
the converging power of eye-lens will be the maximum?
There are two types of light-sensitive cells in the human eye:
To what is each type of cell sensitive?
List, in order, the parts of the eye through which light passes to reach the retina.
After testing the eyes of a child, the optician has prescribed the following lenses for his spectacles:
Left eye : + 2.00 D
Right eye : + 2.25 D
The child is suffering from the defect of vision called:
(a) short-sightedness
(b) long-sightedness
(c) cataract
(d) presbyopia
With reference to the functioning of the eye, answer the question that follow:
What is the shape of the lens during distant vision?
Define the following:
Power of accommodation
What is a Lachrymal gland?
Give Technical Term:
Name the part of the retina on which an object is focused for the clearest vision.
Give Technical Term:
The adjustment of the eye in order to obtain a clear vision of objects at different distances
Complete the following sentence with appropriate Word
The aperture in the eye through which light enters is the:
For the normal human eye, the near point is at ___________ cm.
In a relaxed state, the focal length of healthy eyes is _______.
An aperture that controls the passage of light into the eye is ______.
With reference to human eye answer the question that follow:
Name the part of the eye associated with the layer providing nourishment to the eye.
The figure given below refers to the vertical section of the eye of a mammal. Study the figure carefully and answer the following questions.
 |
- Label the guidelines shown as 1 to 10.
- Write one important role of parts shown as 3 and 7.
- Write one structural difference between the parts shown as 9 and 10.
- Mention one functional difference between the parts shown as 6 and 8.
