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State four reasons related to problems o...

State four reasons related to problems of vision.

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Problems of vision are related to (i) weakening of ciliary muscles (ii) Change in the size of the eyeball (iii) irregularities on the surface of cornea (iv) formation of a membrane over the eye lens.
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NAVNEET PUBLICATION - MAHARASHTRA BOARD-LENSES-Answer the following questions :
  1. Explain the term minimum distance of distinct vision.

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  2. Write a short note on distance of distinct vision.

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  3. State four reasons related to problems of vision.

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  4. What is myopia or nearsightedness? What are the possible reasons of my...

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  5. Observe the following diagram and answer the questions. Which ...

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  6. Observe the following diagram and answer the questions. What a...

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  7. Observe the following diagram and answer the questions. how is...

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  8. What is the sign of the power of the lens used to correct myopia ?

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  9. In a Std. X class, out of 40 students, 10 students use spectacles, 2 ...

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  10. In a Std. X class, out of 40 students, 10 students use spectacles, 2 ...

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  11. In a Std. X class, out of 40 students, 10 students use spectacles, 2 ...

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  12. In a Std. X class, out of 40 students, 10 students use spectacles, 2 ...

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  13. In a Std. X class, out of 40 students, 10 students use spectacles, 2 ...

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  14. What is hypermetropia or farsightedness ? What are the possible reason...

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  15. What is the sign of the power of the lens used to correct hypermetropi...

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  16. Given below is a diagram showing defect of human eye . Give two ...

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  17. Given below is a diagram showing defect of human eye . Give two...

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  18. Given below is a diagram showing defect of human eye . Name the ...

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  19. Given below is a diagram showing defect of human eye . Draw a l...

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  20. Observe the following figures and complete the table .

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