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What are the two main defects of vision?...

What are the two main defects of vision? State how these are rectified.

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BINA LIBRARY-Optics-I-EXERCISE
  1. Find a relation between minimum deviation and the refractive index of ...

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  2. Explain why white light is dispersed while passing through a prism.

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  3. What are the two main defects of vision? State how these are rectified...

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  4. With the help of a labelled ray diagram, show the image formation by a...

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  5. Derive an expression for compound microscope's magnifying power.

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  6. Draw a labelled ray diagram of an astronomical telescope for a near po...

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  7. Write down the expression for astronomical magnifying power.

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  8. Draw a labelled ray diagram to show the image formation in an astronom...

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  9. Write down the expression for astronomical magnifying power.

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  10. State two drawbacks of astronomical telescope.

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  11. Draw a labelled ray diagram to show the image formation in a reflectin...

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  12. Write two advantages of a reflecting telescope over a refracting teles...

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  13. Modern telescope prefer using mirrors over using suitable lenses. Give...

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  14. Concave mirrors are used as shaving mirrors. Why?

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  15. Give reasons why convex mirrors are generally used as driving mirrors.

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  16. How will you distinguish between plane, concave and convex mirrors?

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  17. If a concave mirror is held in water, will its focal length change as ...

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  18. Bubbles of air coming out through water in glass vessel appears silver...

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  19. Name a mirror that can give an erect and enlarged image of an object.

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  20. Does the focal length of a lens depends on the medium in which it is i...

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