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A convex lens of focal lenght 20 cm is p...

A convex lens of focal lenght 20 cm is placed coaxially wih a convex mirror of radius of curvature 20 cm.the two are kept at 15 cm apart.A point object lies 60 cm in front of the convex lens.Draw a ray diagram to show the formation of the image by the combination.Determine the nature and position of the image formed.

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MODERN PUBLICATION-REFRACTION OF LIGHT-EXERCISE
  1. The image of needle placed 45 cm from a lens is formed on a screen pl...

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  2. If the distance between the screen and object is 50 cm and the displac...

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  3. A convex lens of focal lenght 20 cm is placed coaxially wih a convex m...

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  4. An object is placed at a distance 5 cm from a convex lens of focal len...

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  5. Where should an object placed from a conveging lens of focal length 20...

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  6. Calculate the distance at which an object should be placed in front of...

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  7. At what distance should be placed from a convex lens of focal length 1...

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  8. A lens placed at a distance of 20 cm from an object produces a virtual...

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  9. The image obtained with a convex lens is erect and its lenth is four t...

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

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  11. Two lenses of powers +4 D and -14 D form a combination.If a 2 cm size ...

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  12. An iluminated object and a screen are placed 90 cm apart.Determine the...

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  13. A convex lens is used to obtain a magnified image of an object on a sc...

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  14. The image obtained iwth a convex lewns is ereect and its length is fou...

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  15. A lens of focal length 12 cm forms an upright image three times the si...

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  16. A lens of focal length 12 cm produces a virtual image,whose linear dim...

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  17. A lens has a power of +5 D in air.If completely immersed in water,what...

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  18. Find the ratio of the powers of a glass lens in water and in air .Give...

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  19. A glass convex lens has a power of +10 D.When ths lens is totally imme...

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  20. What is the focal length of a convex lens of focal length 30cm in cont...

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