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A person is suffering from presbyopia wh...

A person is suffering from presbyopia which type of lens is prefarable ?

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Bi-focal lens
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VGS PUBLICATION-BRILLIANT-HUMAN EYE AND COLOURFUL WORLD-CREATIVE QUESTIONS FOR NEW MODEL EXAMINATION (SECTION-I) (1/2 MARKS QUESTIONS)
  1. What is the vision defect, when the ability of accommodation of the ey...

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  2. Presbyobia means

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  3. A person is suffering from presbyopia which type of lens is prefarable...

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  4. Ramesh used spectacles for presbyopia. His spectacles consists of

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  5. In which terms, the degree of convergence or divergence of light ray t...

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  6. If the focal length of a lens fis in cm, then write the formula of pow...

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  7. What is units of power of lens ?

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  8. Doctors advised to use 2D lens. What is its focal length ?

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  9. A lens has focal length of 50 cm. What is its power ?

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  10. How many triangular bases is there for a glass prism ?

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  11. What is called the angle between the emergent ray and normal of a pris...

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  12. What is called the angle between the incident ray and emergent ray of ...

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  13. Which of the angle of deviation ?

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  14. Which is the angle of the prism ?

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  15. What are anglei(1) and anglei(2) ?

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  16. At angle of minimum deviation, what is the relation between angle of i...

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  17. What is the relation between angle of prism (A), angle of deviation (d...

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  18. Write the formula for the refractive index of the prism.

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  19. Write the formula for the refractive index of the prism.

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  20. A prism with an angle A = 60^(@) produces an angle of minimum deviatio...

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