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प्रश्न
In the following figure (a) and (b), F1 and F2 are positions of the two foci of thin lenses. Draw the path taken by the light ray AB after it emerges from each lens.
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| (a) |
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| (b) |
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उत्तर
(a) The ray AB after it emerges from the lens as BC.

(b) The incident ray AB emerges after refraction through convex lens takes the path along BC.

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संबंधित प्रश्न
State the condition when a lens is called an equi-convex or equi-concave.
In figure, (a) and (b), F1 and F2 are the two foci of thin lenses and AB is the incident ray. Complete the diagram to show the path of the ray AB after refraction through each lens.
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| (a) |
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| (b) |
Distinguish between a real and a virtual image.
Study the diagram shown in Fig. 5.56
what are the two other characteristics of the image?

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- Draw two rays to locate the position of the image.
- State the position of the image with reference to the lens.
- Describe three characteristics of the image.
- Describe how the distance of the image from the lens and its size change as the object is moved towards F1.
In the following diagram , the object and the image formed by the respective lenses are shown. Complete the ray diagram, and locate the focus. Find the focal length of the lens.

Complete the following diagram and state what happens to the ray of light after refraction through the lens.

Complete the following diagram and state what happens to the ray of light after refraction through the lens.

Complete the following diagram and state what happens to the ray of light after refraction through the lens.

In the following diagram, L1 and L2 are the two convex lense placed at separation equal to the sum of focal lengths of the two lenses. A and B are the two rays of light incident on the lens L1. Complete the path of rays till they emerge out of the lens L2.

What principles have you used in completing the diagram?




