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Where should an object be placed from a ...

Where should an object be placed from a converging lens of focal length 10 c, so as to obtain a virtual image of magnification 2 ?

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5 cm
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SL ARORA-RAY OPTICS-Problems For Self Practice
  1. The radii of curvature of each surface of a convex lens is 20 cm and t...

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  2. The radii of curvatureof double convex lens of glass (mu = 1.5) are in...

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  3. Where should an object be placed from a converging lens of focal lengt...

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

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  5. A convex lens is placed on an optical bench and is moved till it gives...

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  6. A convex lens of focal length 30 cm is placed between a screen and a s...

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  7. An object is 60 cm in front of a thin lens, the image being 300 cm on ...

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  8. A source of light and a screen are placed 90 cm apart. Where should a ...

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  9. An object is placed at a distance of 1.5 m from a screen and a convex ...

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  10. The distance between a convex lens and a plane mirror is 15 cm. The pa...

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  11. A concave lens focal length 10 cm is placed on the axis of concave mir...

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  12. A concave lens is placed in the path of convergent rays. The rays are ...

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  13. A needle 10 cm long is placed along the axis of a convex lens of focal...

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  14. When a slide is placed 15 cm behind the lens in a projector, an image ...

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  15. In the diagram shows below rays are coming from infinity and after pas...

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  16. In the following ray diagram are given the position of an object O, im...

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  17. In the following diagram are shown the position of an object O, image ...

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  18. A compound lens has been formed by joinined a convex and a concave len...

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  19. Two thin lenses of power + 3 D and - 1 D are held contact with each ot...

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  20. A what distance must an object be placed from convex lens of power 4D ...

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