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प्रश्न
Observe the following figure and complete the table:

| Points | Answer |
| (i) Position of the object | |
| (ii) Position of the image | |
| (iii) Size of the image | |
| (iv) Nature of the image |
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उत्तर
| Points | Answer |
| (i) Position of the object | between F1 and optical center |
| (ii) Position of the image | same side to the object (between 2F1 and F1) |
| (iii) Size of the image | Magnified |
| (iv) Nature of the image | Virtual and erect |
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संबंधित प्रश्न
To find the image-distance for varying object-distances in case of a convex lens, a student obtains on a screen a sharp image of a bright object placed very far from the lens. After that he gradually moves the object towards the lens and each time focuses its image of the screen.
(a) In which direction – towards or away from the lens, does he move the screen to focus the object?
(b) What happens to the size of image – does it increase or decrease?
(c) What happen when he moves the object very close to the lens?
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(a) Which type of lens should be use and why?
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(c) Draw ray diagram to show the formation of the image in each case?
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Fill in the following blank with suitable word:
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(C) inverted and enlarged
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(b) Show by a ray diagram the formation of a real image by simple magnifying lens.
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A lens always forms an image between the object and the lens.
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Differentiate convex lens and concave lens.
