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प्रश्न
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?
उत्तर
| Sl. no. | Image formed | Kind of image |
| 1 | On the retina of the eye | Real and inverted |
| 2 | By a magnifying glass | Enlarged and erect |
| 3 | By a convex driving mirror on a car | Diminished and virtual |
| 4 | By a plane mirror | Virtual and same sized |
| 5 | On the screen of a slide projector | Enlarged and real |
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संबंधित प्रश्न
Fill in the following blank with suitable words:
When light is dim, the pupil becomes................
Fill in the following blank with suitable word:
The iris controls the amount of................entering the eye.
If you walk from a dark room into sunlight and back again into dark room, how would your pupils alter in size? What makes this happen?
A man driving a car can read a distant road sign clearly but finds difficulty in reading the odometer on the dashboard of the car. Which of the following statement is correct about this man?
(a) The near point of his eyes has receded away.
(b) The near point of his eyes has come closer to him.
(c) The far point of his eyes has receded away.
(d) The far point of his eyes has come closer to him.
What happens to the image distance in the normal human eye when we decrease the distance of an object, say 10 m to 1 m? Justify your answer.
Differentiate between:
Yellow spot and Blind spot.
Name the following:
The focal length of the lens is altered by the contraction of which type of muscles.
Name the following:
Fluid present in the posterior chamber of the eye.
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 |
