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Optical centre of convex lens:...

Optical centre of convex lens:

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The point inside a convex lens on the principal axis, through which light rays pass without changing their path, is called the optical centre of the convex lens.
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What is meant by optical centre of a lens?

TARGET PUBLICATION-LENSES -Answer the following
  1. Principal focus of convex lens:

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  2. Principal focus of concave lens:

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  3. Optical centre of convex lens:

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  4. State the rules to draw a ray diagram of a convex lens with proper fig...

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  5. State the rules used for drawing ray diagrams for the fomation of an i...

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  6. An object is placed at a distance equal to 2f in front of a convex len...

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  7. At which position will you keep an object in front of a convex lens to...

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  8. State the rules used fro drawing ray diagrams for the formation of an ...

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  9. When would virtual image be produced by convex lens? Why can virtual i...

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  10. State the rules used fro drawing ray diagrams for the formation of an ...

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  11. Explain Cartesian sign convention in case of refraction through lens.

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  12. What is the difference between focal length of convex and concave leng...

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  13. Use your brain power! M=(h(2))/(h(1))" …..(i)" M=(v)/(u)" …..(ii...

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  14. What is the power of a lens ?

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  15. If two lenses of focal lengths f(1) and f(2) are kept in contact with ...

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  16. Give an account of the structure of human eye.

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  17. What is the function of the iris and the muscles connected to the lens...

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  18. The order of the three layers of cells in the retina of human eye from...

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  19. Match the columns in the following table and explain them.

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  20. What difference can be seen between eyeball suffering from nearsighted...

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