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प्रश्न
State whether the following statement is true or false:
The image formed on our retina is upside-down
उत्तर
True. The eye lens is a convex lens, so it converges the light rays from an object and produces a real and inverted (upside-down) image on the retina.
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संबंधित प्रश्न
What do the ciliary muscles do when you are focusing on a nearby object?
Why does it take some time to see objects in a dim room when you enter the room from bright sunshine outside?
What are rods and cones in the retina of an eye? Why is our night vision relatively poor compared to the night vision of an owl?
The descriptions of five kinds of images are given below:
(a) diminished and virtual
(b) enlarged and real
(c) enlarged and erect
(d) real and inverted
(e) virtual and the same size
Which one of these describes the image formed:
(i) on the retina of the eye?
(ii) by a magnifying glass?
(iii) by a convex driving mirror on a car?
(iv) by a plane mirror?
(v) on the screen of a slide projector?
State the Location:
Iris
Complete the following sentence with appropriate Word
The part of the human eye where rod cells and cone cells are located is the:
Write the name.
The part of human eye that transmits electrical signals to the brain.
Name the capacity of the eye lens to change its focal length as per need.
Match the following:
| Column - I | Column - II | ||
| 1 | Retina | a | pathway 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 |
Name the following:
Kind of retinal cells sensitive to dim light.
