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What is the position of image when an ob...

What is the position of image when an object is placed is at a distance of 10 cm from a convex lens of focal length 10 cm?

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In an experiment a convex lens of focal length 15 cm is placed coaxially on an optical bench in front of a convex mirror at a distance of 5 cm from it. It is found that an object and its image coincide, if the object is placed at a distance of 20 cm from the lens. The focal length of the convex mirror is :

An index pin of height 3 cm is kept at a distance of 15 cm from a convex lens of focal length 10 cm. The image is obtained on a screen placed on the other side of the lens. What is the height and nature of the image ?

LAKHMIR SINGH & MANJIT KAUR-REFRACTION OF LIGHT-Exercise
  1. What is the nature of the image formed by a convex lens if the magnifi...

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  2. What is the nature of the image formed by a convex lens if the magnifi...

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  3. What is the position of image when an object is placed is at a distanc...

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  4. Describe the nature of image formed when an object is placed at a dist...

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  5. At what distance from a converging lens of focal length 12 cm must an ...

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  6. State and explain the New Cartesian Sign Convention for spherical lens...

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  7. An object 4 cm high is placed at a distance of 10 cm from a convex len...

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  8. A small object is so placed in front of a convex lens of 5cm focal len...

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  9. Find the position and nature of the image of an object 5 cm high and 1...

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  10. Calculate the focal length of a convex lens which produces a virtual i...

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  11. An object is placed at a distance of 100 cm from a converging lens of ...

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  12. A convex lens produces an inverted image magnified three times of an o...

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  13. A converging lens of focal length 5 cm is placed at a distance of 20 c...

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  14. An object 5 cm in length is held 25 cm away from a converging lens of ...

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  15. At what distance should an object be placed from a convex lens of foca...

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  16. An object 2 cm tall is placed on the axis of a convex lens of focal le...

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  17. The filament of a lamp is 80 cm from a screen and a converging lens fo...

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  18. An erect image 2.0 cm high is formed 12 cm from a lens, the object bei...

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  19. A convex lens of focal length 0.10 cm is used to form a magnified imag...

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  20. A convex lens of focal length 6 cm is held 4cm from a newspaper which...

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