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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
Draw a simple diagram of the human eye and label clearly the cornea, iris, pupil, ciliary muscles, eye-lens, retina, optic nerve and blind spot.
Describe the working of the human eye with the help of the above diagram.
The size of the pupil of the eye is adjusted by:
(a) cornea
(b) ciliary muscles
(c) optic nerve
(d) iris
Fill in the following blank with suitable word:
Having two eyes gives a ................field of view.
Among animals, the predators (like lions) have their eyes facing forward at the front of their heads, whereas the animals of prey (like rabbit) usually have eyes at the sides of their head. Why is this so?
What is a lacrimal gland?
With reference to the functioning of the eye, answer the question that follow:
What is the shape of the lens during distant vision?
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.
With reference to human eye, answer the following question.
What is blind spot?
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 |
